Any type of weight training is good: you should try arms and legs split and throw in some cardio. I started like this and swam 1-2 a week and lost 20 pounds in 4 months with little diet changes
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Anonymous15h
Start by just making a habit of getting into the gym between 3-5 times a week. Anything you do while there is a bonus.
If you want to do anything with your diet at the very beginning, track your protein.