Greetings fellow TRP members,

I have been lurking this subreddit for around a month and I'm very glad to have found it. This is my first post here and I need help from the experts.

I'm seeing many guys here starting to go to gyms more and workout. I'm 17 with a skinny lean body frame and I want to start working out but I have no idea where to start. I am lost. I have also never been to a gym before so I don't know how to use machinery etc.

Unlike most people, I am actually underweight by a lot. I am 5'8" weighing 121.5 pounds and have a BMI of about 18.4/18.5 which is in the underweight category. My Bodyfat is 13% which is great for someone who doesn't have a good diet and eats fast-food regularly (I stopped eating French-fries about 2 months ago and stopped drinking Soda's for about a year now).

I can't gain weight because I usually have a small appetite and I get full quickly because I'm a slow eater. I also have very high metabolism which is probably a good reason why I have 13% Bodyfat for someone with a bad diet/sedentary lifestyle.

Now I've done some research and stuff but many sites are not helpful and many encourage taking steroids and muscle pills etc which I am not a fan of. It's all guides for already ripped guys looking to get more ripped. Nothing for a starter.

I have good facial genetics, facial symmetry and charming eyes but having no athletic build is harming my SMV potential by a lot.

I'm in desperate need of exercises/workouts for someone who has no muscles (desperately need them for my arms), needs a good posture and to show my abs. And I need some tips on how to fix my diet. I also want your expertise on Protein shakes

My arms look very thin with no muscles. Fortunately, I have Had people tell me I don't need much effort to have sexy abs since I don't have much Bodyfat there and if I contract my abdominal area slightly, my traps and 4 pack abs show as if they're defined along with lines on the sides of my body.

TLDR: I'm an underweight 17 year old who needs to improve his SMV by starting to workout. I have never been to a gym before. I need muscles for my whole body (arms especially), posture, and defined abs. I also need to fix my poor diet (I don't eat a lot and I don't eat good). I am 5'8" weighing 121.5 pounds and 18.4/5 BMI which is poor. Please set me on the correct track to build muscles since I barely have any and recommend me a good diet since most sites are trash for these 2 departments. I also need thoughts on Protein Bars since I'm not getting enough proteins in my diet.

Thanks for the tips fellas.