My play station wont turn on at all

I recently got a PS4 off a friend. he informed me that it sometimes wouldn't work (Randomly shut down but touch sensors worked at the time) so I looked up a few tutorials on how to take them apart and I cleaned it out. After cleaning it out the touch sensor wouldn't work so we ended up using the controller to get it to turn on. We got it on and tried to put a game in, no luck on that. The disc drive was not working. So I ended up staying up for 4 hours trying to figure out why it wasn't working, Why the touch sensors weren't working. If anyone knows a fix I can preform at my house I would greatly appreciate it. Thank you