Hi Ws&Ds
Whereabouts are you located... UK/US/wherever, N, S, E or W ?
The range of tune knowledge (beginner to encyclopaedic) is about the same for any 'folk' type instrument, it takes time to build a repertoire and then one finds that t'other fellah has but few in common! Rest assured that amongst us mortals not everyone knows every tune.
From my very limited experience I've found that most groups will explore tunes held in common and accommodate those with only a few under their belt. The other advantage of a group is that you'll hear new (to you) tunes and benefit from being able to simply sit and listen... an essential part of the learning process.
I have two groups within 30-45 miles but the fuel costs are prohibitive and I don't relish an hour or so drive each way at this time of year when the weather can be a bit iffy! As much as I'd like tuition the fees plus travelling put it out of reach... that said, I'll be looking to go along to one of the Piping days (esp. if there's something for beginners) when it fits in with commitments.
Have you tried a Piping Day? Are there any tutors using Skype or similar that might be able to help you?
Maybe it's time for a beginners 'Tune of the Moment'*, preferably not visible to the world and his dog, where the more experienced could give constructive guidance...
*Given the uptake of TotM it may take some time before it's taken up
A personal view on giving up ... if it's still giving pleasure, don't! If it's not then do!