StrongLifts 5×5 Beginner Strength Training Program | StrongLifts.com
Taking 150g of protein won't necessarily make you bigger. Eat more of carbs/ everything so that you have a surplus of calories, and train hard. Probably working lower body with squatz and deadlifts will help you gain mass.
First good post of this thread.
To get big first thing is diet. Eat a calorie surplus. How much over depends on how fast u put the weight on and how fast u put it on determines how much fat you put on. Protein up it to above 1g per pound of bodyweight and eat an approximately 40/40/20 protein carb fat diet should work.
With the weight lifting i dont know whether you are a bigger or not. so with 7 months u really shouldnt be a beginner but im going to guess you are.
For a beginner you should do a beginner program such as the 5x5 program mentioned above or starting strength or rippetoes program or something like that. They are all very similar focusing on compound lifts and lifting heavy.
If you are intermediate then you might htink about splitting your workouts with a 3day split or a 4day split with one rest day after the 3 or 4 days. with this you split your bodyparts and focus on jsut a few a day hitting them with various different exercises for different results, if u do not know what you are doing do not do this.
But getting back to your original question, there is no set sets/reps for weight gain. As someone else said you should be using a few different rep ranges but it more depends on the movement rather than anything else. Usually for hypertrophy one would for 5-8 reps for compount movements and 8-12 for isolation exercises. Also one thing u need to make sure of is your form dont try and lift as heavy weight as you cna there is no use if you form is dogdy so focus on form first then lifitng heavy. Another key tool is using overload principles such as supersets, dropsets, forced reps etc etc.
go to bodybuilding.com it has all the info you will need from people that are much more knowledgable then me.