Mostly young people your age seem to resent their parents and try to shut them out, so kudos to you for wanting to
have a relationship with your father.
Since you're not eased into a lengthy conversation with
your father from a young age on, it won't happen overnight
either. Perhaps you have a common interest you could
find - fishing, baseball, whatever. You need to brake
the ice and find a common ground for repeat conversations
that will in time get into a deeper level of exchange.
One of my friends always went fishing with her father and
although they sometimes sat quietly with their rods, they
still benefited from each others time.
Since your father has been disabled for the last 10 years,
maybe he feels inadequate to not being able to support
the family any longer or do the things he used to.
Unfortunately, I lost my father when I was a teenager but
I still remember the times whe I came to him for advice
or some silly problem I knew he could help me. He was
so eager to help me and so happy to show me things -
it created a special bond between us, only the two of us
shared.
What's your father interested in? Could you go and see
a movie together and talk about it afterwards? Or read
a book together and exchange ideas. Ask him about
his past: at that age, people love to reminisce about the good old days.
In essence, just find a common interest and work from
there. You're definitely on the right track already Seed