Serious Relationship troubles, please help.?

my gf and i relationship lately hasnt been going so well.. weve been having some troubles, she wanted a lil space for herself, so we both tlked and eventually agreed to a break from being all lovey dovey, we are still in a relationship and in no way are either of us talking to other people.. its not like that at all.. its been hard though becuz we have been talking alot veryday like normal, so i feel as if im smoothering her.. its been emotionally hard for me to control my emotions th past few days and thats not gonna help us... she wants to do her own thing, but also doesnt want us to us.. we have put so much time, energy, dedication and emotions into us. iknow she is trying and i am also.. I mentioned that maybe a break for several weeks or a period.of time with no contact.. so itll give her time and me time also, we will set time apart and set a date to meet up and really deeply communicate. We feel that may help us really take time and think clearly about ourselves and about us as a couple, to really deeply figure out if we are both willing to work towards us, and the precautions to take. we are still in a relationship and neither of us wants it to end. what are your thoughts, opinions, how much time should we allow and what should be the details? have you been in a similar situation? ladies and gents please help! *we are in our mid twenties, not some highschool fling and have been in a dedicated relationship for two years.