My problem is that with most of my exercises I get breathless before reaching anything close to failure and little pump. This breathlessness thing doesn't look like nothing serious but is really annoying and frustrating because my heart starts beating really fast and i cant really get any meaningful rep nor good form.
I tried with light weights and heavy weights and the result is more or less the same. I fell like I get more out of the heavier weights but I'm still always getting tired before failure.
I also tried higher tempo rep and it got a little better with some exercises but then I lose good form.
The thing that I am trying now is to do a lot of low weighted reps (around 40 per set) to achieve some "burn" without that much tiredness.
I do mostly body weight compound exercises. I know this are probably more taxing than isolation exercises but I exercise with what I got at home (a pair of dumbbells and that's it)
What I am looking for is some way to exercise and only get the "muscle tiredness and burn" without having my heart so accelerated. I notice that I achieve this when I do dumbbells curls.
As you probably can imagine from what i am witting I am mostly a beginner. I imagine the problem is mostly my physical condition but i would like to know if I'm overlooking something else. Could it be maybe that I am not breathing correctly during exercise?
And lastly, if the problem is only my physical condition, how do I fix it quickly? How long until it's fixed?
If it is of any use I am a 24 year old male and do some cycling from time to time.