Cody , I usually resize my photos prior to posting (unless its from the phone camera as these seem to be just under the limit size) . there are a few different way to resize pictures but i usually just use the paint file accessory that every computer has and open the photo file in that and then click the image window to open the stretch and skew option . depending on the size of the photo file i will shrink it down (huge files will be taken down to about 15 or 18 % level while close ups maybe just 35 % . then i'll save it and post it on the forum.
click on the manage attachments window below where your writing the post and a large window will pop up with many Browse tabs . simply click one and search for your photo , double click that picture and then click the unload button on the bottom and then submit the reply .
feel free to private message me Cody if your still having trouble and I'll work with you to understand it better .
Dan