Why is my upper body not getting bigger?!?

Question

ok, i'm 15 years old and i started weight lifting on a regular basis since april pretty much. i've been increasing the weight i do about every 2-3 months but no matter what i do it seems like my upper body in general just isn't getting any bigger. don't get me wrong it has, but not as much as i thought it would be by now.
since i can't go to the gym a lot like i could in the summer, i am forced to weight lift at home. my routine is: (sets,reps) 3x10 shoulder shrugs using 35 lb dumbells, 3x10 bench press using 30 lb dumbells, 3x20 bicep curls using 25 lb dumbells (w/out using my back of course), 3x10 side arm raises using 10 lb dumbells, and 3x10 (i'm not sure what its called but when you bring the dumbells in front of you to about parallel to your shoulders) using 15 lb dumbells. now i've been doing those workouts since april. just recently i'd say about a couple of weeks ago i added these to my routine: (again, not sure what its called but its when you have the dumbell at your side and your lift it behind you to work the triceps) 3x10 using 15 lb dumbells, and lastly, forearm curls, which i do 3x30 for each arm using 10 lb dumbells.
now, i can do more weight on every single one of the workouts i mention but my dad and a friend (who is a personal trainer at the gym) said if i do too much weight at this age, my growth could stop. and considering that i play basketball i'm trying to get as tall as i can get lol. but like my dad is 5'10" and he is the taller one of my parents and i'm 5'9" and a half so i don't think i'll be growing that much more. also, my dad said i shouldn't really increase the weight of what i do especially on bicep curls anymore until i gain more weight because i only weight about 125 (yes, i know that's light) but since my upper body just doesn't seem to be getting bigger that much, in a way, i'm kind of tempted to just do heavy weight and less reps. what should i do?

Answer 1

it is true that you can stunt your growth but only if your crazy lifting allot and 2 times a day, i wouldn't worry about that that's hard to do. as for the light lifting its almost as effective if you isolate the muscle your working on and doing the reps very very very slow, so you should only in the long run for each set be able to do 4 or 5 reps. trust me you'll fell the burn. this will not only make you stronger but tear the muscles, tearing the muscles is what gives the muscle more room to make more muscle to grow, in turn making you bigger!!! let me add you muscles are made out of protein, so the more protein you take in the more muscle you will build take in 1.5 g of protein per day. this includes shakes if you do them. if you are super skinny and have a fast metabolism, you should look into Weight gaining supplements, but that's a another question. in conclusion diet is 80% of your workout results, you need to figure it out, its all trial and error, what to eat, when to eat it and how much will give you different results not just different exercises and Weight!!!

Answer 2

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Answer 3

you recognize this befell to me too i do no longer understand why i assumed i became loopy yet I see it is possible. the only ingredient i will think of of it is that when you build muscle this would ensue.