Careful with BTC -> XMR ->BTC swaps for obfuscation. Many caveats, trivial to trace if not done correctly, and not recommended unless you know what you're doing. If you do, this will help a lot:

1) Wait at least a day before swapping back into btc, but the longer the better. [to resist timing attacks]

2) Do not send the same amount back into btc in one go. Break it up into chunks. DO NOT consolidate after. [to resist amount analysis]

3) For the first swap (btc -> xmr) do on exchange A, for the second swap (xmr -> btc) do on exchange B. [prevents single exchange from seeing both swaps]

4) Do all this behind tor/i2p or at least a good VPN (mullvad, ivpn, safingIO spn). Change your tor identity or vpn server for each swap.

Recommend:

BTC -> XMR -> Spend XMR

Or even:

BTC -> Coinjoining -> Spend BTC