The tech cert on its own is of limited use and would class you as a jobbing plumber doing small menial tasks of limited scope. The full nvq2 I suppose really isnt worth alot more as 3 onsite visits to say 'yes you can wear a hard hat' ......... 'yes you can solder a pipe'........'yes you can erect ladders or carve up floorboards' etc doesnt really make you any more competent.
As has already been said Rome wasnt built in a day........Take your time, hone your skills and persevere.
Once your level 2 is done then you can focus on level 3 which is alot more in depth with advanced hot and cold water etc and is worlds apart from level 2.
I have been at college for the past 4 years on evenings after work, I work hard crappy shifts, 2 weeks days amd 2 weeks nights and I get so tired.
Its been hard trying to juggle the family and study and keep everybody happy - but its an ambition.
I would say dont give up your day job what pays the bills and keeps a roof over your head.
But also follow your dreams and be realistic with regard to what you hope to achieve.
I really have total enthusiasm to try and achieve my ambition.
It isnt going to be easy and I wouldnt want it to be done in 6 weeks.
But hopefully hard work and commitment to your ambitions you will get there.
My journey is still ongoing and I become more enthusiastic as my knowledge grows.
Its been difficult, expensive and also fun, ive made good friends along the way and look forward to what the future holds.
Im not out to make a quick buck, I have a day job ( well ok ok ok....i work shifts lol but you know what I mean) that does that already but with no satisfaction.
But You have to ask yourself before you embark on this - are you prepared to give it your all.
Because it requires it.
4 years down the line I could have done a degree in law or civil engineering, but I want to be a gas engineer.
Whatever you choose - do it for the right reasons and give it your all.