Does he pay you with black money? I find it hard to believe that a bank would have problems with you receiving income from a job, as long as it is legal and declared.
it's not that the bank has any problems with the op making money. The point is that banks with low trust do not get along well with others because the banking system operates on trust. So if a large European bank has to send (or receive) a transfer from a small bank in an underdeveloped country with a shitty currency, the fees can be really significant adding to this the currency conversion on a low-liquidity pair.
On the other hand, if at the end of the day you have to convert part of the P2P bitcoin to be able to pay in fiat, I don't see much difference to cashing in fiat, spending what you have to spend and buying P2P bitcoin with the rest, apart from the problem with your bank.
You receive a bitcoin transfer at a cost of $1 and only what you need for food is converted into the local currency by p2P trade at a small cost because you exchange bitcoins for cash outside the banking system (banknotes hand to hand).
I do bealive that such a solution can reduce costs and make life easier, especially if the local currency has high inflation and low liquidity.
