Im 13 1/2 Im 5 ft. 8in. Im cosidering buying some scuba equipment after my padi certifacation but dont know what to buy, let alone if i should buy it in youth or adult size, please help.

P.S Im trying to buy gear online soo I dont want to talk to my local retailer. Thanx

Fit, form, function, and comfort.
Suggest you look for equipment that lets you grow a bit into them.
Use your local dealers for fit and sizing but you don’t have to buy from them.
Below are some web links that will provide an assortment of equipment to choose from: