I was bronze 2 last act, but now I am iron 3.. I think if I try really hard I can maybe get to silver?

My friends say that I am at most bronze 3, so I would love to get some tips to improve.

I am trying to do the Aimstars aim training, and I think its going okay.

I find things that I suck at is:

Killing people when they wide swing me Killing neon players

I am learning to improve how I enter, because I tend to try check all my corners, but then I just get swung, however I feel I will just get better at that over time.

Thank you for the help.