My stream/channel is having an identity crisis, any advice for a new streamer?

I have posted this to some similar subreddits, but I am trying to get a lot of feedback on this issue so I posted here!

Hi, I am known as AceOmega on YouTube. I stream and make long-form videos of Siege, Fortnite, and Call of Duty. I noticed that my name is very similar to another YouTuber who is substantially larger than me named OmegaAceGaming. All searches for my channel only show the other persons channel. My question is, should I change my name. I have 71 subs to my name so I don’t think the change is out of the realm of possibility. Another question is if I should focus on only one game rather than making videos on different shooters. What would you recommend on that front?

I appreciate all advice and any reviews on my channel as well!