I've been working out consistently for about 5-6 weeks now with two days for pull ups every week but I haven't been able to increase my reps at all. Is there something I could be doing wrong? I've started eating lot more but I still haven't made much progress.

Does anybody know of exercises to target the long head of the tricep so that I can get bigger arms?

I noticed Caliversity did very high reps like 500 a day, my friend told me he did 1000 push ups a day and he got pretty big over the summer. I'm just wondering if doing this is actually good or if adding extra weight like a backpack or weight vest for less than 20 reps a set is good enough.

Do you guys want to do dips but don't know where to start? After trying countless exercises and routines, the most effective one was to do lots and lots of reps of pushups. I followed @Daemon Caliversity "Advice to teens trying to get BIGGER" and made tons of gains. The immense strength and endurance gains are unmatched. Try it out for yourselves and after a couple of weeks attempt to dip. Thanks for the advice, @Daemon Caliversity

So i have been training for like 3-4 months now but i haven't seen any like muscle definition yet. I have become stronger but the muscle definition just isn't can some one please help me.