re: I want to start a Twitch channel

Not trying to discourage you but it is really hard to get a successful stream going in general, be it twitch or youtube. Add in the content being gaming and it is even harder because a lot of people do that. I think if you want to go that route it will need to be some game that not many people stream but has a lot of popularity, or you need to be crazy good in something competitive, but regardless it will be an uphill battle on building an audience.

Also, and don't take this in a negative way, you will need an entertaining personality. You may have that but will it translate to good interactions with the few people who may pop by on your stream? Will they keep coming back?

I really think the easiest way to build a streaming platform built around gaming is commentary, and even that is going to be a hard feat. Once again I am not trying to discourage, just advising you that it will require a lot of time and nothing may end up coming of it.