6 month old fights sleeping

Tyler

Lately our baby boy has been hard to take naps and even go to bed at night. We fight with him and try to rock him or sing to him and alot of nights it's 10 or 11 before he finally crashes then gets up throughout the night. Has anyone dealt with this and figured out how to get them to sleep easier. I can't figure out any way that works. As soon as we lay him down sometimes he just wakes right up. I think he would be exhausted.