It wouldn't take long to get back up to speed, they have elimated all the grinds to level up and upgrade things. The materials/currency you need are guranteed rewards, not random drops. You can get extra from nightfall rewards though
You should jump back on and join the party chat, getting to level 34 is a couple of prison of elders runs. Armour core for the 32, use that to buy whatever Variks is selling. Upgrade an exotic piece, then you're level 33. Then run the 34 prison and so on.
You've got multiple charcters as well, so getting etheric light from the 34 version won't be hard. Just transfer them to make one character level 34.
You make it sound so easy

I guess I can't face the grind of doing everything with 3 characters and I do actually fear getting addicted to the game again, it was all I thought about several months ago. Crazy.
I do want to try PoE but I guess it depends if you guys want to take me through a run on the lower level.