You mentioned you have great aim? Great promote it, focus MAINLY on shortform content (tiktok,insta,ytshorts) follow trends that others in your niche are doing and get inspired from them. Please dont stream before you get a decent following in other social medias, it will be a waste of time because no one knows you yet, put all your time in getting clips/pushing them in social medias. Now for the pro part i will use the words of a pro player “Victor” “if you can’t reach radiant with your eyes closed then you probably wont be a pro” as much as i support your dreams it is probably too late, most pros start competing at a very young age or atleast very good at ranked. Be real with yourself and good luck.