Instrument cluster lights not working

Hi, yesterday I removed an instrument cluster panel from my car because I wanted to replace the gas gauge bulb. By the way I have had no experience with cars, but want to learn so instead of looking at one bulb I complicated myself by removing all of it trying to locate which bulb was for what. I notice that I have a printed circuit board on the back of the panel and touched it with my bare fingers as I was removing the cluster. I do not know if that would have an affect with natural grease on my hand malfunctioning the board. I even checked the fuses visually no break in the middle of the fuse. The only thing that works is my emergency lights in the clusters, and only one top light that is above the gauges, usually theirs two that emit just one works. Both of the top lights worked yesterday but now after removing them today and putting them back on only one works. The first time I performed this project was yesterday so I had the battery still connected not knowing the potential risks of blowing out a fuse. Now today when I removed it again I disconnected the battery to prevent a short-out. The gauges and odometer lighting do not work still. Could it be the bulbs are not properly contact? When I removed the instrument panel again I noticed my other turning signal light was not on. Then once I tested the bulb and put it back in it worked. What could be the issue? I made sure the bulbs were aligned too. Maybe incorrect bulbs? I mean I used ones that looked exactly like the old one appearance wise and size hoping it has the same watts.