Buy Bitcoin, trade it on a decentralized exchange for monero, trade some of that monero for Bitcoin you send to a new address.
Fees will cost a lot doing that but it's simple and easy.
Discussion
#[0] #[1] #[2] #[3] #[4] #[5] #[6] #[7] #[8] this doesn't actually give you privacy though. This is what andy greenberg was referring to when he said chainalysis can deanonymize 60% of xmr transactions. Monero is private, other coins are not, and they can track people moving from monero to other coins using the metadata of the non private chains. They cannot actually track monero unless you leave to go back to bitcoin or another coin