Wix Word Wrap mobile issue and creating H2, H3 issues

I have one mobile page that is not word wrapping correctly. In multiple cases, it leaves one letter on a separate line and also doesn’t use available space efficiently. Any suggestions? Also on this same page using one text box, When I try to change a single line to an H2 header, the whole passage changes to H2. The only thing I can think of is to delete the whole page and create a new one or to use separate text boxes for these issues. My other page doesn’t have these problems. Thanks for any assistance.