WithdrawalRequests.sol

contract Foo {
  
  uint256 constant MAX_WITHDRAWAL_ATTEMPTS = 3;

  mapping(address => uint256) private numWithdrawalAttempts;

  function doWithdrawalRequest() public {
    require(numWithdrawalAttempts[msg.sender] <= MAX_WITHDRAWAL_ATTEMPTS);
    
    // ...
    
    numWithdrawalAttempts[msg.sender] = numWithdrawalAttempts[msg.sender] + 1;
  }

}