One of the factors to build stronger muscle at faster rate isbetter body rest.
1. Try to consume more Carbohydrates and Protein
2. Multiple meals helps in gaining more calories so as to get stronger muscle
3. Good preworkout meals help a lot in gaining muscle at faster rate.
4. Whereas consuming high quality of meal helps a lot in getting stronger muscle.
5. Drink plenty of water.
A good protein carb meal about an hour or 2 before your workout will be the most beneficial. I like to drink some coffee about 30 minutes before as well... feel like my workouts are stronger with it. If you feel that you arent getting enough protein to grow... you can look into one of the paleo protein powders too... Not the best option but it is a quick easy way to get protein if you need the plus up.