Hi, I strongly recommend you, to look for any kind of piping related association or pipers in your area, to let them take a look at the set.
I am only a beginner on the pipes (somewhat seriously trying to learn them for a year now, having a barely playable set that was collecting dust for a couple of years longer..) and wasted a lot of time, because of technical problems with my set. At first I didn't make progress because of a broken reed and air escaping a knot on the chanter. Then, after a pipe maker fixed the chanter and and made a new reed, it took me another couple of month of barely making any progress, because the reed was too strong (at least so I thought..).
Then finally I visited a piping workshop weekend and a pipe maker noticed that me bag wasn't air tight any more and that the valve on the bellows wasn't working so well.
Now I finally have a chanter with a good working reed an air tight bag and suddenly piping seems a LOT easier and more satisfying.
Whenever I had these technical problems with the set, I thought it was just my sloppy, inexperienced playing, making everything so hard. I never realised, that the set was the problem, only other pipers made me realise that.
Therefore, I strongly recommend sending the set to a pipe maker to check, wich parts of the set are playable.
The pipe maker who fixed my set is Hendrik Morgenbrodt:
http://www.morgenbrodt-pipes.de/index.php/de/Good luck!