For a starter you have a good amount to invest, but invest it wisely on top altcoins that are cheap, and dont invest in just one coin you must divide you investment in portions, but altcoins and also for a safe side invest in ether, btc as well.
Some coins are in uptrend for almost a week. If OP waited until now he made a mistake. It's what we talk here all the time, you can wait for
prices to drop and than to buy, but many times the price will surprise you and make progress, in that case you will regret cause you didn't buy
on time.
Bitcoin under $10k is a great for buying. I can't say will the price go down again, but maybe this are the last moments for Bitcoin under $10k.
Who knows, as the halving is coming closer and experts that predict price higher than $20k this year maybe that is true, so who didn't buy until
now should do it.