Base on your address your have 3 unconfirmed transactions, the first is you don't include in to post, but you send another transaction which is this
https://blockchain.info/tx/35edbea23a1d26bef7dea0615653e35b25ca3b3cf00dbb21a8c94baa0f2dedf7 which has an unconfirmed parent from your previous transaction.
Anyways I tried to accelerate your 3 transactions for good, and I don't see any problems with using mycelium, in your case you are fond of receiving too many micro payments which are not recommended because you will suffer later once you're fond of doing it and that's why you are struggling with the fees right now.