your overthinking it. they're not disfigured, they just have high insertions. As you grow and put on the inches, they'll fill out just fine. Relax. Don't waste your energy worrying.
Hair and height are not related. You grow in height until the growth plates in your bones fuse - which happens somewhere between 16 and 22, depending on your genetics
12 kg gain in 7 months is excellent if it's all lean muscle. Your pic shows that you dont have much excess body fat, so I would say you've made fantastic progress!
Its possible for you to see changes in yourself even if the change is really slight . . . cause your used to looking at yourself. But for changes to be big enough for others to notice take alot more...
The "reason" is well known: A guy gets hard as part of REM (dream) sleep. Most of the REM sleep happens in the hour or two before you wake up, so you usually wake...
Get a chin-up bar! It's the single most important piece of home gym equipment you can have. Not as good as going to the gym more than once a week, but it's a must!
This is a why it is a good idea for a 14 year old to avoid too-heavy weights. But you can still squat! (It's one of the best exercises for your whole body as well as your legs) Just use a lighter...
Try dumbbell bench presses (both flat and incline) rather than barbell, and then lower the weight as far as possible - you will definitely feel it in the pecs. When you press it up, think "squeeze"...
You can get all the protein you need without eating red meat: Chicken, turkey, and fish! The important thing is to get enough protein - it doesn't really matter what kind of protein you choose.
