I have made my living for the last 45 years drawing with a mechanical pencil , You Sir , have the God given talent . I can see it and see the improvements in your drawings . They are looking good, it takes a little time to develop your own technique and line quality but they are developing....The drawings look good. Don't stop.
Keeping the mind working sometimes gives the body a reason to heal, We will be praying for you, do not despair.
Gary