I've only been in the Crypto market a few weeks. Is it normal for prices to crash a bit on the weekends?

I know nobody ever knows the answer of when the price will go up or down, but how do you guys normally judge a good entry point? STRAT peaked at 11 but now its sitting around 7. Would most of you wait to invest more, hoping it'll go to 5. I'm thinking about getting in here, maybe buy 30 or so.

Sorry for the new question, but I'm hoping someone could help me out. I downloaded the LDOGE wallet and tried to deposit 5 as a test. So far it hasn't' shown up, I'm assuming once the wallet is in sync with the network it will show up, then I can deposit the rest into it?

Also, a question for the Pos; if you had as an example, 500k in the wallet. what type of return and build rates could you expect?