Need some serious tips for climbing

I've studied league for 3 months and I still can't improve. I watch every game I play to see my mistakes and try to improve but I just can't do it. I've watched tons of guides on champions and watched high elo streamers to help me out. I've practiced farming, map awareness, where to ward at proper time. I've done it all. But I just can't improve. If anyone has some serious tips I would appreciate it.
Report as:
Offensive Spam Harassment Incorrect Board