So, i'm 18 this year, turning to 19 and yes im a college student. So i have quite a skinny body and unfortunately im not tall too. Now im 176cm in height and weight is 62kg.
So i've been going to the gym for the last 4 months doing these exercises 6 days/week :
Dumbbell Chestpress 12 x 3, rest 45-55s a set, and i only manage to lift 16kg each hand so far. I know it is embarassing

Leg extentions 12x3, rest 45s, now is 36 kg
Decline ab crunch 20x3, rest 45s.
As for Mon, Wed, Fri, i do biceps concentration curls, 12 x 3 consecutively between left and right arm, currently at 8kg
Tue, Thu and Sat would be Straight bar pushdowns 12 x 3, rest 45s, currently at 32kg


aim is to be more muscular with V line and ripped with 6 packs lol. is having a bit of fat, i want to get rid of it!!!
And yeah as im quite young i guess i can still grow just a lil bit taller, so i also dont want any exercises that may prevent that little hope.
So what i am seeking is advices for all these exercises im doing right now. There is result, but however i want to know what's best for me.
Finally, nutrition related advices are welcome
