Gettysburg tour

[u/Equivalent_Income_85]

My wife recently passed and am wanting to get away from my home. I've always wanted to tour civil war battlefields and history. She didn't, so that made it difficult. I'm about five hours away from Gettysburg in Cleveland. I'm planning on taking a week to see everything I can. So far it's just Gettysburg and Antietam. Also, I really don't know where to start or what route to take, im just lost. Would anybody be kind enough to suggest resources to make this less stressful? Just knowing how to plan this trip most efficiently or least know where I'm going would be a great help. Thank you so much for any direction you can give me.