Being in the state you are now comes with a lot of worries, I'm glad you're much outspoken, seeking help and trying to know if actually there's a problem you need to tackle. It's shows that you really want to live, you want to pass this stage and move on, and for falling back again, it's normal, it might seem like a force is keeping you within that loop. It's normal seeing the kind of attachment you had with your brother.
just keep doing it bro. You have to just keep trying, whatever step you need to take.

I have very fine cardiologist around my school teaching hospital, but it's Enugu State and it's a teaching hospital, everything different from what you desire, going with someone more easily assesible will be much better. God's grace Man, you'll be fine soon, I pray so.