Looking for help improving my skills

Hey,

So I'm looking to find someone who's willing to work with me today and tell me what I'm doing wrong and how to correct it. I'd like to get better at generally all positions (though I'd say I'm best at Jungle and Support) and the overall game, as I feel I probably have many areas to improve in. I'm not going to become Masters level in a day or anything, but I want to know the path I need to take to get there. I'd prefer someone in Diamond+ so that I can get a more accurate accounting for what's needed to reach that tier.

Thanks in advance for any help.