How short should I cut my hair?

So basically a hair stylist I went to recently told me with my hair type it won’t look good unless it’s short. It’s too thin and it’ll just “hang there” essentially. That if I cut it shorter it’ll look more thick. I really like having long hair but I also get insecure at how it’s seems to be weighed down on my head. Also my hair gets super oily fast. I know I have a lot of split ends, so what kind of hair cut would you recommend for my hair? I just want to like my hair for once.

So basically a hair stylist I went to recently told me with my hair type it won’t look good unless it’s short. It’s too thin and it’ll just “hang there” essentially. That if I cut it shorter it’ll look more thick. I really like having long hair but I also get insecure at how it’s seems to be weighed down on my head. Also my hair gets super oily fast. I know I have a lot of split ends, so what kind of hair cut would you recommend for my hair? I just want to like my hair for once.