I think it's a good start, and your motivation and courage will carry you through.
May I humbly suggest taking some voice lessons? I started about 4 months ago, and see a huge difference. My teacher has pointed out a lot of things that have helped me a lot.
All you need is some basic technique from a good teacher and with time and practice you will learn to discriminate more, sing in tune, and be able to sing the way you want
Keep at it, and be sure to post in the future. You will appreciate the progress you see as you watch old videos over time.