You need to learn to trust yourself when you start your Reiki practice. Use your intuition to figure out where to go on the body and what you should do. Don't ask what you are doing, know that you are being instructed what is best for the patient. That doesn't mean you just have to do what is right and comfortable for you. There are many books that cover the position and symbols of the hand and there are many strict rules. Reiki does not have to be rigid in its approach. Controlling Reiki is a doctor's wish. Most doctors just want to help the patient feel better. Different hand positions are useful but sometimes not necessary when we are in the moment and guided by our own insights. If anything feels right, it probably is. There is nothing wrong with using Reiki.
Commit to your practice and continue with your daily self-healing sessions. Like most things, everything you put into Reiki is what you get. So practice every day to keep the practice flowing. After a few weeks, if you miss a treatment, you will find yourself losing your missing free-flow license. Some professionals go down and think that everything is done and that everything is done well. Some have tried a little harder. Just don't try too hard. In many sessions, when you feel that there is no Reiki and nothing is wrong, the patient will speak and tell you where to sit. Trust your skills. If you start guessing and worrying elsewhere, Reiki will crash. So, do what comes naturally to you, even if you don't feel anything and instead observe how the patient looks.
Why not try: Beauty Reiki