I normally buy my bitcoins with a bank transfer to the vendors account. Obviously this is connected to my identity and I tumble through multiple wallets am I fucking myself by doing this? Is the only way to do cash deposits?
If LE ever asked could I just tell them I used the bitcoin fr gambling/ cam girls?
Obviously I am a newb so advice is greatly appreciated!
Sending coins through multiple wallets is not "tumbling," and it does not provide nearly the same security as actually mixing your coins with other people's.
Think about it. You're moving the complete, full bitcoin balance of one wallet to another, over and over. Is that a normal pattern of usage? Sure, you just "happened" to find some person to buy exactly that many coins off of you, and then they found one, too (less fees), and then they found one too? That doesn't sound very plausible.
I would use Helix or a couple rounds of JoinMarket. Or, if you want to play it fast and loose, you might as well just use one intermediate wallet. But using a whole chain of intermediate wallets is not really gonna do much to obscure the coins, in my opinion. They need to be joined with other people's coins.