Tbh kegging is a separate skillset and can be a right pain in the ***. Plastic self primed / co2 cartridge is also the tougher end of the game. But here's the kicker that final step is currently ruining your enjoyment of a good pint.
Get the process and the taste right first. Great beer awaits you.
If you do too much too soon, you won't be able to see which bits going sideways.
Brewing needs these steps..
Good recipe & ingredients
Good mash, process & controls
Good fermentation, process & controls
Good packaging & storage
Those steps need...
a chef,
a buyer,
an engineer,
a brewer,
a chemist,
a secretary,
a Cellar man
and a Landlord.
We all bring some of them to the party, and learn the rest.
Why not get some bottles and a quality kit, and make yourself grin, with a smashing glass of something you made.
It will be a lot easier, to revisit kegging with a glass in your hand