Template Problem Posts

I am not sure what is going on or how to fix it, but I was having the problem of posts overlaying each other. So then I put in a
<div style=”clear: both”> after the post in the index file and that fixed the problem, but now the width of each post gets bigger and bigger and it is not floating right.

My page has a left sidebar, and I can’t seem to get the posts to line up correctly on the right of that div. Any help would be much appreciated! Thank you in advance!

Here is where it is happening:
https://www.joe2h.com/