Crying inside just can't quite get probability

I'm taking stats online and this unit is on probability. I'm having a terrible time understanding it. The conditional probability rule is where I'm at right this minute. Does anyone else have a hard time with this? I'm just not sure I can make it through this class at this point. I spend hours and hours and hours working on this homework and I still don't honestly understand what I'm doing. Any tips and tricks to help see it a different way or anything? Thanks!