I was a super skinny guy and let me tell you. 75% of your muscle comes from your diet. Carbs and Protein should give you enough muscle to confident in just a month.
Carbs = 3g-4g * your-body-weight. Protein - 2g-3g * your-body-weight.
Atleast 3 days of rest and start by doing the big 3's - squats, deadlifts and barbell row/push.
Your Welcome.