how to gain muscle mass w/o steroids

[fczz]

guys ive been at the gym for a year and 3 months and bulking nd shi since 2 months and i cant seem to gain muscle mass im si k

 

[fczz]

first i cut for 1yr and lost bf cuz i was overweight tyen maintenance and rn bulk
ive gained a shitload of strenghth too like alot, running 4 days UL and yeah