Doloress. If you don't want to buy them on an exchange and use a wallet to sold storage them yourself, you cshould consider someone like Globalblock who will enable you to buy/sell and also offer a safe storage solution for Crypto. I also use Gemini which you can set up easily online and have safe storage solutions. Click and trade. Bybit are not bad as an exchange but you sound like you are just starting up so you may want to consider one of the two earlier options for peace of mind. My advice would be to start off with something like 60% BTC , 30% ETH and the remaining 10% split into alts like Polkadot , ADA, XLM and LTC. Use Tradingview (or IG have this actually) to look at the ETHBTC chart over four years which shows you that ETHBTC got close to 1,000 at one point and is currently only 415 . This shows you that in a bull market ETH should outperform BTC by almost twice. Other alts could give you even more upside relative to BTC but the big institutions are buying nearly all BTC and some ETH. Other useful sites are real vision.com with lots of good Crypto explainer videos. Follow PlanB, Northstar ,Nikkitrades and a few others on Twitter . Good luck!!