I can't help much but going by what others said
if it is a clearomizer
then yeah, you just destroyed it....
the "screw" is the 510 connection and those clearomizers are not meant to come apart...there's no putting it back together again...you need to buy a new one
but keep in mind as well, those tend to be plastic and most juices will eat through plastic
try to stick to glass tanks
and if your mod is firing on its own then it needs to be scraped and a new one purchased and as stated, please stay away from mech mods and get a regulated mod
if you wish to use mech mods then please study up on battery safety and ohms laws
we really don't want you to explode your hand....
if you are wanting to stick with the pen type style i've heard a lot of good things about the
uwell nunchaku currently on sale for $50.90, this includes a tank
all you will need is an 18650 battery (well 2, to rotate them out while 1 is charging) and a charger
I typically buy my batteries from
IMRbatteries.com they are reliable and when you order 2 or more batteries they give you a battery case for safe storing and transporting. I would suggest either a Sony VTC6, LG HD4, or Samsung 25R (well 2 of them as stated) and then you can find a charger usually pretty cheap
however the
Sony VTC6 is actually on sale for $6.19/each and you can get 11% off with code: VAPECHEAP
so in the end you'll be paying about $62 (then plus shipping) for a new mod, tank and 2 good batteries....just need a charger