I have a LDR with someone in Mexico we are together for some time now but I genuinely think I'm doing more damage than good... She cries everyday and begs for my attention but due to me needing to study i am not able to give her much. She is really clingy and has had tons of issues that I've tried to resolve with an unsuccessful result. She is really manipulative at times but I just feel guilty you know? We've been through couple break ups and problems but I think it is just time to go solo for a while at least until I get my studies done or return home...

How do I do this? Also I know she is going to ask me to come back together how do I deal with this?