So far, so good
For only having worked out for a year, you definitely have an impressive plan in place that will train your body as well as your mind – especially the challenge of consistency.
As a foundation, it is important to know that the exercising, itself, is always and only catabolic: it tears you down. Then your diet, rest, and habits of posture and movement – these, at their best, are anabolic: they build you up. So you need to spend at least as much time – and ideally much more time – paying attention to your diet, your rest, and your habits of posture and movement. Only then will get the best anabolic pay off for your catabolic work. And by the way: you can definitely go from 140 to 175 in a year or even less, if you are dedicated, consistent, and focused on working out smart, not just hard.
If you do not already know, then learn about the differences between eccentric movement and concentric movement. Without a strong grasp of this knowledge, you will only ever reach a fraction of your potential.
Specific to Bulking Up
1. Drop the training to failure.
Yes: all of it. Including your abs. Guaranteed.
2. Get a spotter whom you can trust, and train heavy.
Above all: have your spotter add weight on the negative of a movement: we can handle much more weight through resistance than through exertion.
Use weight that you can only handle for 6-8 reps – for two sets. Four sets of 5 reps is no good: if you can handle 4 sets – then you can handle significantly more weight for 2 sets (especially once you add weight to the negative reps).
When you feel yourself not refreshing (especially in your joints) or plateauing, then train for a few weeks with weight that you can handle for 15-20 reps. This helps you to stay active while letting your body recover and adapt.
Then, for a few weeks, use weight that you can do for 8-12 reps.
Then get back to weight that you can only do for 6-8 reps (and if you really think that you need 25 reps on your quads, then just significantly up the weight, and significantly slow down the reps – then watch what happens).
3. Drop the two-on, one-off.
You need days off to build your body. Resting builds. Overtraining does not.
You can be as active as you want on your days off – but take your days off.
Train M-W-F or T-Th-Sat (by the way: you can – and ideally should – train your calves on every gym day).
4. Bulking Requires Stability.
The absolute biggest obstacle for thin people to bulk up is that it is too easy for you to always move really fast, bend around a lot, hold yourself in exaggerated postures, and walk with much too wide a step.
Bulking requires stability. Be who you are – but be sure somewhat to "fake it to make it" with the stable posture and movement that you see from large people – very muscular people and also very fat people: they move more methodically and stably than a thin person because it is too hard not to. You can mimic their stability to build a more solid frame which will allow you to bulk up faster than if you are zipping around and bending all over the place in a way that only thin people can manage. Again: fake it to make it.
5. Ignore fads.
I started training in 1994, at 15 years old. I am now 43. Years back, at my peak, I was the strongest person in nearly any gym I went to. The way I got there was not by following any fads – at all – and certainly not by any "no pain, no gain" nonsense. Rather, when I eventually became a personal trainer, I would always tell my clients:
It is not "no pain, no gain" – it is "no pain, no strain; and no strain, no injury; and no injury – then no long, unproductive breaks to training."
Pay attention to your body; listen to advice that works; and ignore people who are paid – at least with attention – to tailor their advice to certain products or philosophies.
6. Ask Around.
My dad introduced me to exercise back in the 90s. He was always strong, knew a ton, and always answered anything I asked him. However, eventually, I was mostly not training around my dad. But I always – always – asked others for advice.
By the description of your workouts, I assume you are exercising at a gym. At the gym, it does not matter if someone is stronger than you, weaker than you, fatter, thinner, whatever – nothing: if they have any aesthetic that you want – or can do something that you want to be able to do, then ask them how they got there (then take their advice with a grain of salt, since plenty of this stuff has a lot to do with genetics). Some gym people are zoned out and impatient (or simply rude narcissists); but plenty are not, and will be happy to help you with whatever questions you have. Just be sure to learn a bit about gym etiquette (if you do not already know). For example, usually do not approach someone right after their set, so they can recover. And, with few exceptions, definitely do not approach them during their set (yeah: some people need to be told that).
7. Take My Advice With a Grain of Salt (if at all)