I'll give you all credit for even thinking about doing something to your car. I've noticed from the posts that the only real issues are not knowing what to do and fear of trying. We didn't climb Mt Everest in one day. Start small. Don't ever be afraid to try something because you don't know about it. We learn and gain experience from making mistakes. My dad always told me that if your not making mistakes and learning from them, you are doing nothing.
As far as manuals go, I use them daily in my job. Even though I have the information in my head, I still refer to them. They are a great source of information. Keep in mind that most of them are written with a mindset that you have some ability - if you have none, they can intimidate you. Ask questions. Follow the procedures - makes it somewhat easier and the procedures are important. When you remove something, lay it out in the order you remove it, left to right. When you put it back together, start from the right and work to the left. Parts left over are pocket parts (kidding-mechanics joke).
If you don't want to get dirty, wear latex gloves. They are cheap, protect your hands and keep them from getting dirty. You may have to change them a lot because of damage. They are great for keeping fluids off you hands. If been "wrenching" for over 50 years and I wear them all the time. When you are done with your job you just throw them away and waha clean hands. If tried mechanics gloves and they don't work for me.
I hope this will help you somewhat and encourage you to try different things to do. Try to remember that we don't make mistakes - we create learning experiences. Good luck and have fun with it.
Jim