It is hard, but not that hard. I assume you have the correct cover - and you should double check to be sure. With the correct cover, and right side tab correctly in the slide channel, and the left side tab at the cut out area of the left slide channel, you should get this to go in. It takes some effort, but not an unusual effort. I am a little concerned that something isn’t right, but you should be able to pull outward on the cover, and press down at the same time to push the left tab thru the cut out area. I have never had to apply heat removing or installing my cover, although it might help. I don’t recall me ever using a screwdriver to pry. There might be a you tube video of someone doing a cover replacement?