After you are done with this three tips, register on a reputable exchange like bybit or any other one you know is ok by you, set up a bitcoin wallet and then begin with a small bitcoin investment to get familiar with the process and continously educate yourself on bitcoin and the crypto market.
You don't setup washers on exchanges, exchanges are used to purchase coins, although there's providing to hold your coins there if you wish, but it isn't a wallet. Most exchanges have their wallets as a separate application just like Bitget wallet, Binance wallet OKX wallet, e.t.c.
You can consolidate your coins in an exchange until it's substantial to move to a wallet because of the fees.
It's better to use open-source decentralized wallets like Electrum, Blue wallet, sparrow wallet to store your coins for total ownership and safety of your coins.
please don't me wrong, what I meant by set up a bitcoin wallet is by setting up your own bitcoin custodial wallet to store your bitcoin after purchasing it from an exchange and not setting up a bitcoin wallet on the exchange. Though I have edited it for clear understanding.