When I got back into buying knives due to the plethora of modern-style knives 20 years ago, I went nuts. Often buying 2 knives a month, occasionally more. This went on for years. Then I hit a point where I realized there were certain models of certain brands I bonded with and used, while other brands (or other models from preferred brands) sat around unused. I was happy when I ordered (or bought in person) a new knife, kinda like a fix, but with very few exceptions, that excitement didn't last, and I'd have to find another one to fill the void.
I eventually developed a system where, if a knife catches my fancy, I wait at least a month, sometimes several. Which means no more (or almost no more) impulse buys. I found that, more often than not, after that month, I no longer really want the knife. I also set aside a 'knife fund' for a knife I really, really want. It takes a while to accumulate. If I still want the knife after I've accumulated enough dough, I will pull the trigger and purchase it. Then when I pay off my credit card at the bank, I use the accumulated $$, which equals the price of the knife. By becoming very picky about my knife purchases, I've saved myself a ton of money, and I enjoy what I have a lot more.
It took me awhile to come to the realization of what worked for ME. And it may take awhile for you to find which knives and brands speak to you above all others. Also don't forget other interests, too! As I've gotten older, I've developed even more outside interests than I had before.
Enjoy the ride!
Jim