What does mediation have to do with gardening or taking care of bonsai? These two art forms have quite a bit of intersection, and they’re both precursors to living a happy, fulfilled life. It’s even better if you pair the two.
I know that some people will use pesticides to take out scale, but you don't really have to and they are often not every effective, anyway. Just carefully inspect your tree and scrape off any scale that you see. You might need to do it a few times to get all of them and you can wash the sap off with water. If you're squeamish, you can use a Qtip to scrape them off.
The thing that I find funny about Serissa is that some people think its a piece of cake to grow and for others "it's impossible". I think there are a few factors contributing to that rather wide range of opinion.
One good thing to come out of the pandemic is a renewed interest in vegetable gardening- (and gardening in general, actually and even though things have gotten better your own personal vegetable patch is still a great way to explore gardening.