My boyfriend and I have dating for two years, and it was good in the beginning, and now it's a little bit rough. Where as we wanted a break and so we both agreed to have this break. Now one month into this break I decided to talk to him about trying to make it work, because I love him so much, and he said he loves me, and misses me as well.

Now he is saying he need time he isn't sure. What am I to do? I miss him, I want to get back together with him, but I want him to be sure that this is what he wants as well, so we can maybe make it work. What am I to do help?

For good.
Go NC.

In the same boat as you at the moment, its hard not knowing where you stand.
People tell you to move on and do this or do that, its all easier said than done.
Truth is the best way to deal with this is no contact, even if you can make it a rule for you not initiate contact with him.
I'm getting all the mixed signals too, 'I miss you so much' 'I love you' and then plenty of casual questions like 'are you seeing anyone else'.. all this would lead you to think that maybe your ex wants to get back but then if you were to ask them then all you get is the same old 'I don't know, I need more time' etc etc.

You have done so well lasting a month already. Continue to do what you are doing and for now just try to eliminate him from your mind. Don't text, don't call, don't email or fb him. You might feel great sorrow deep down but never let it show. Find ways to vent you energy like the gym.

Not hearing from you & not knowing how you are feeling will make him realise one of two things..
a) he misses you & can't believe how foolish he was to let you go or
b)he doesn't miss the relationship & is happy to move on

Focus on yourself in the meantime as I said above, hopefully things will work out for you
Good luck

When someone is not sure whether to get back together with you, it doesn't matter any longer who misses who, or who loves who. You leave them alone until they are and do other things you enjoy.

Seems to me that unless you have resolved what caused the break in the first place, then he may well be afraid of it happening again, and he is probably right. Solve the problem first, if you can, and the rest falls into place. Hopefully. If not, I doubt you get back together, and it would be time to accept it.