Well, now that we know your medical history...... sounds like you've been thorugh an ordeal.
All that aside, because in relation to the music and software, none of that matters.
Yes, there is a learning curve to Music Creator 7. This is true of any of the good DAW software. You have to take some time to learn what it can do and how to get it done. Second, you will definately want to add a good interface and a condensor mic to the list of things you will need to do the recording the right way. So there is some up-front investment required..... both in time and money.
Once you get past that point though, you will be able to record just about anything you want. One hand and a mouse plus a keyboard to enter commands is all you need to be able to operate in a reasonable manner. This software is drop and drag for most of what it does.
This forum has a number of users who are here and willing to offer advice and instruction when you run into that proverbial brick wall and can't figure something out. However, we do recommend that you start by watching the MC instructional videos first. By doing so, you will have most of your questions answered and can see how things are done. Sure beats coming here asking us to do everything for you..... which, BTW, we can't and won't.
GO to the support pages and read the documentation and watch the getting started videos. Youtube is also a good resource.
All the best....