Can't get my tech level up

[EnoRaeFeht 0]

I've done everything that other people said on previous posts but the tech level is still level 0. I have level 2 intensity on industrial and residential buildings and I have a lot of parks near a lot of houses (the parks are medium wealth). My sims are all happy and don't have anything to complain about, the only thing I don't have is a hospital but I do have a highly upgraded clinic which also gets the job done. 

[Prophet42 1,503]

What about schools?  You will need grade schools, highschools, colleges and universities to educate your sims.  Smart sims raise the tech level.

[EnoRaeFeht 0]

oh yeah and that I have a grade school also, but I can't get an university or a college yet

[Prophet42 1,503]

You will have to build up to getting the university.  Once you get the university, you will have to add on to it different schools (like the school of engineering) to build up the tech level.  It takes a while to get to that level.  However, you only need one university in the region to enable you to build the tech level of the whole region.