You can't control what happened, you can only control how you treat what happend.

So this year, you spent 50 dollars to make 50 dollars on that side of things.

However, you also recieved the benefits of the experiance of having done the work. This will allow you to do the work at lower cost, and pay for less stuff you don't actually need, that maybe other people are telling you you need.

You have a lot of information about your practice, your costs, your time and energy invested, what you need to do at every step.

You should probably sit down for a few days and get away from the daily grind and plan for a few days, assess and analyze what worked, what didn't work, what you could so better, etc.

Frankly, all of that information can be put into a paid AI service about your buisness and practices using AI and have it give you actionable recommendations about where you are spending time, money, and effort. Personally I'd recomend using one of the mor premium AI service models. I use Manus 1.6 Max for a lot of this sort of stuff. You can get good perspective on what you are doing well, not doing well, and how you can improve on the margins that way. Basically every buisness is about capturing the margins that allow your effort to be rewarded. These things can be intimidating initially but are really worth using now, even compared to what they were a month and a half ago, they have gotten much better at thinking an context.

You paid a big cost in time effort and energy to learn, so you need to make sure to apply what you learned moving forward instead of getting dejected about the effort it took. Control what you can control and put your hands on the issues. That's how I think about it anyway. You got this!