There are instruction manuals for almost everything except for us, human beings. The reason for that is we weren’t made in a factory and we don’t run on software. We are each unique.
There is no right or wrong way to do things, it’s personal not mass produced.
If it’s working keep doing it. If not, then learn, modify and carry on until it gets even better.
We can, of course, get sucked into buying certainty and instant fixes from a guru, but they don’t work. We’ll just have paid to know what works for someone else and that someone else isn’t us.
Successful practices and habits are self-made for us and take time to develop. But what else are we going to be doing, if it isn’t learning and getting even better at life?