Is it worth it??

So my 2002 Jeep Liberty limited decided to
be a royal pain in the as*! Thought it was the
catalyst converter because that’s the code
causing my engine light to come on. Drove to
work, drove home and back to work from
lunch, went to leave 4 hours later and it
struggled to start, when I got it started, it
started shaking like it was trying to shake me
home instead of drive. I went a down the
parking lot and it died. Got it into a parking
spot and the check engine light started
blinking. I don’t know much about cars, but I
know not to drive with a blinking light. Called
my AAA and towed it to the auto shop. Got a
text today from auto guy saying “well cylinder
#2 is reading at a 0.” Cool, so my question
is.... what’s all involved in fixing this? Is it
worth paying to get it fixed? He hasn’t given
me an estimate yet, he wants to look for parts
and prices and all that good stuff. He knows
I’m a single mom and can’t afford to not have
a vehicle... does anyone know about how
much I’m possibly looking at? I’m stressing!