If you're only doing one project every once in a while, consider just ordering parts from people online. They do the work, and mail you a finished part.
The printing services are good if you need metal prints or if you need resin prints and can't deal with the fumes and mess.
If you just need filament prints, it's better to buy a printer. It really sucks to wait a week or more for the part to show up only to find that you made a mistake and it doesn't fit.
I definitely am not a power user like others, but after practicing with 3d modelling for the last little while, it has become an integral part of my workflow on most of my projects from household repairs, woodworking, electronics, etc. Its also something I am looking to increase my proficiency in so i dont thinkn the ordering online route is for me.