I know the feeling. We sometimes put so much pressure on ourselves. I once took voice lessons (not for singing) but simply to help me with my presentation skills. I used to think that I had a "weak" voice and wanted to improve my confidence in business meeting situations. The teacher had me read excerpts of scripts from famous movies. I really got a lot out of this and transformed a weakness into a strength.

You sound like a super-caring person. You should feel great about your ability and desire to help others. Being a really loving person is a great quality.

God bless and good luck!