User:DSXG Plays/workouts

As long as you work out, maintain a caloric surplus, you will gain weight and muscle. Start out by Bulking hard until at least 125 lbs, and then you can cut back down to 115, and Bulk back to about 130 or more. Once that's done you can just cycle Bulking/Cutting and then people will be mirrin dem ezthetikz.

Prerequisites
I recommend, if you don't have access to a gym, to start Calisthenics.

Workouts
Make sure to train your legs, your core, and your upper body !

Legs :

Squats, Lunges, Hill Sprints

Core :

Planking, Wall Sits, Hollow Body Position

Upper Body :

Push-Ups, Pull-Ups, Dips

Conclusion
This is a really basic exercise ideology, but it will allow you make a decent amount of gains if you eat and stick with it (since you aren't starting out with a high muscle mass). You can always make the exercises harder by adding variations (One Leg/One Arm/ETC) once you are able to do at least 50 repetitions without breaking a sweat !

I really hope you are going to be able to change your lifestyle for the better and wish you all the best at doing so !