Sent you a PM. You could lear a lot about DASH in this forum, but other cryptos (there are more than 1000) also have plenty of info, on the internet.
Depends which cryptocurrency you're interested at. There is not better time than now to buy crypto, because bitcoin is in bullish trend, meaning - price is increasing, and it takes DASH with it. And almost all other cryptos as well.
To invest - you either buy crypto from an ATM (a crypto ATM), or use an exchange. I'd avoid coinbase, binance and any other that requires too much personal info, and might block your account. You could also try a decentralized p2p exchange like localbitcoins or paxful. Which country are you from?