You can't learn everything for just a short span of time, it takes a lot of time in order to understand all cryptos. And answering your question how to analyze when to buy and sell, that's quite hard since none of us can predict correctly which coin would elevate the most for you to get the highest profit. There are a lot of respected website on the internet that might help you, and sometimes, some thread here in bitcointalk can help you too. And it seems like, you want to do everything at the same time, but I think it would be better if you start one at a time!