There is so much garbage opinionated advice thrown out that does not take into context the plat you buy or the style you prefer. I would recommend buying a few alt books and trying out what works for you. I really think your stats are fine, and I think if you maximize your damage output you will level effectively. With 300 dex, Longshot bolas sharp shot and doubleshot will do more damage faster than any buff to your auto. If anyone disputes that they obviously have no idea what they are talking about.
edit: "Garbage" is the wrong word (unfair for me to say). Everyone has their own opinions. Try different combinations based on some of the suggestions.
Where exactly are you leveling atm? longshot is a horrible idea in the close boggan rooms. And bolas, but I wont go into that. I will say that a 1k ls is hard to beat dps wise, but if you can do 100 more dmg an auto for more than 10 autos...? Also its hard to cast longshot bc of closeness. Ss and dble are excellent skills, perhaps our best dps skills atm. After you train out of the close boggan rooms ls is a wonderful skill but til then no.
I agree with doing whatever floats your boat, as everything depends on skills, equipment, builds, and resources.