There is nothing limiting you except your own availability.
The Lord can take anything or nothing and get the same result - He only requires availability and obedience.
Many have served Him effectively in difficult conditions - prison, physical handicap, exile and many other situations.
Hudson Taylor was bedridden and on his back for two years. He was able to do nothing for himself, and asked for a map of the world to be put on the ceiling. For the two years of his illness, he prayed for the different countries of the world.
Amy Carmichael was so limited in motion that she could not turn herself over. She was bedridden and totally dependent on others for 20 years. Yet, the Lord spoke through the pain and the isolation in a way that has touched and changed many lives.
You are no less.
Look up. Move on.