if youre only motivation for working out, you are not going to lift for long!

I started for that reason, but now i have moved over to think about myself and now i am more than average fit (i am currently bulking)!
But if you are going for it, go 100% in, count calories, i recommend using My Fitnesspal", it calculates your macros, all protein, carbs, fat, calories and so on. Hit the gym hard, i workout 4 days a week. Eat a 200-500 calories surplus for maximum musclegrowth, sleep enough and train right.
I run a 4-split:
monday - chest and tricep
Tuesday- legs and abs
wednesday- back and biceps
thursday- shoulders and traps.
Make sure your form is good, if you lift the big five you don't need to train abs directly more than 1 time a week. when bulking, stay away from cardio, but when the cuttingseason come, go hard on the cardio. but cardio have never hurt anybody, so do it if you want.
You will get a great body, YOU will feel great, you will get looks in the summer, at the beach, when you are wearing a tanktop, and women will like your body.
good luck on the training!