Welcome to the forum. If you think you suffer from acoustic trauma for exposing to the loud guitar sound, and if your ringing started recently, then try to get some prednisone steroid from your doctor asap as this is highly recommended by members here for T caused by recent noise exposure. Don't know if you should continue on playing, but definitely you need protection. Many musicians & singers have T, Peter Townsend, Streisand, Phil Collin, Eric Clapton etc., etc. You can google search it and the list is long. Some have to stop playing, and others hang on. So it is a personal decision one has to make. But if you ears are very unstable now, it is best to give the guitar a break. My 2 cents.