Welcome to DIY! You sound just like me when I was getting myself all geared up and could have spent hours every day writing recipes and mixing.
Pretty soon, new mixes were taking over the place and there was no way I could vape everything I had mixed up. I apparently do not have "discerning" taste buds like other people do, because I thought many of my own mixes were absolutely fabulous, and I had to rein myself in and say that I was going to pick 8 or 10 recipes that were special favorites of mine, and let the rest of them sit for some unknown time in the future.
I still have well over a hundred recipes on ELR that I've never mixed. It was super easy for me to get carried away.
As you said, it will help if you pick a few recipes that show the most promise, work on getting them like you want them, and at some point decide if you're going to keep working with them or move on. If you've got one right, mark it as a "Keeper" and mix it when you need to. Not to belabor the point, but doing anything else really does waste your supplies, and in a time when we never know if we'll be able to replace our supplies tomorrow, that is something to consider.