Thin hair with breakage

Hi, I'm new to the sub and want to up my haircare game. I (14F) have pretty thin mid-back-length hair and bc of my age I'm not going to post a picture.

Some info: My hair type is kind of oily/greasy (i have to wash every 2-3 days). I've never gotten my hair dyed and i just started using a Pantene volume shampoo (sometimes also some Honest lavender shampoo) and pantene baobab conditioner.

I have some breakage/split ends on my curtain bangs, and a lot more at the ends. I was just wondering if there are any recommended products for fixing this and also for hair growth like hair oils/masks and how to use them! (pls keep this relatively affordable)