Illustrator CC 2017

I was adding a Type/Text box into my design when Adobe Illustrator stopped working and not responding. Then when I was able to get it back up I could place a Type/Text box in my design but the box was filled with lines and lines of unwanted text. I got that fixed but now the text comes up at barely 1/16th of an inch and I am unable to change the font size. I have done everything that everyone has suggested and I have also uninstalled the program and re-installed it and the problem is still occurring. I really need to get this fixed ASAP