Ok i've been working out for like 3 months now and it honestly doesn't look like my arms have grown at all. When i flex they look a little bit bigger but not much. And when they aren't flexed my arms look as skinny as they always have. But my question is this, should i just stick to compound exercises like pull ups and cable rows and bench press even though i don't feel a burn in my arms as much as when i do some isolation exercises for them? I want to make sure i'm not overworking my arms and not underworking them.

What is your workout looking like right now?

Full Body workouts on monday and thursday, including the following exercises: Squats, Standing Calf raises, straight-legged deadlifts, seated cable rows, bicep curls, lateral raises, shoulder press, bench press, dips, tricep pushdowns, hanging leg raises, weighted sidebends, weighted crunches, pullups and pushups. I do about 2-3 sets of 8-10 reps for each exercise. This is also assuming my nutrition is fine and sleep is fine.

You may just not be noticing the change yourself as it's so gradual. Try asking someone else's opinion who sees you a lot, or try taking photos at regular intervals in your training.

It's kind of like how anorexic people look in the mirror and see themselves as fat bu the opposite...in this case it's you were skinny and used to seeing a skinny guy, then with the gradual change you don't really notice it 'till you look back at how you were at the start. Probably why everyone's never satisfied...

However, it may be that there's something wrong with the workout, or you're not eating enough or one of many other things.

Have you been doing the same workout all 3 months? You may want to look into a multi-month routine where it automatically changes every 4 weeks or so and see what types of gains you get from that.

My thinking is that your current routine is not designed to build alot of muscle as much as it is to condition your body.

I recommend a push/pull/legs split. I've only just switched from a full body to a split routine but I do notice you can work the muscles much harder this way.

I don't know about anyone else but that's A LOT of movements for just one day. 15 exercises is a bit much, that's where I'd start.

I'm a huge fan of the major muscle(s) a day routine. Plus, for arms, you need to hit them hard with compound exercises that focus on them, and then finish those mothers off with iso moves.

Could it be that im' not hitting the muscles hard enough, since i'm only doing 1 or 2 exercises per muscle group?

OH also, i havent' been doing that same workout for all 3 months, i used to do a uppwer/lower split, then a push/pull split. So full body workouts really aren't that great for building muscle?

Volume and intensity are the keywords you're looking for when it comes to building muscle.

Men have built slabs of muscle on fullbody routines. In fact, if you were to look at the strongmen of the early 1900s and 1800s, they used fullbody workouts and while most of them are not overly muscle bound, they are far stronger than almost any lifter out there today.

full body routines are great for burning fat. but usually a split would work better. evolution hit the nail on the head, definatly too much in one day, again why a split would be better. every exercise that you're not doing in the first 4 or 5, your going into with a low intensity, this could definatly put a damper on gains. especially if you always do them in the same order. a push pull leg split is pretty popular for building mass, i'd reccomend it. also maybe try to get your rep counts up around 12. and maybe throw some isometric holds at the end of each exercise (last set).. that should give you some results.

That's what I'm saying, that many exercises with that many reps - not a building routine, that's a burning or conditioning routine - even strength, but not size.