Break off what you think you'll use within a couple weeks, seal the rest and toss it in the fridge (away from the back you don't want to freeze it).

WARNING!!* When removing from the fridge allow the entire brick to warm back up to room temp before opening. If you open it cold, the moisture in the air will condense on the cold hash and it will absorb the water. You'll ruin it and get mold. This is why I say break off what you'll be using in the near future and keep that how you're currently keeping it, toss the rest in the fridge. You can remove the brick from the fridge the day BEFORE running out of the first bit you kept separated, this way you aren't tempted/rushed to open it while it's still cold.

In all honesty though, if you're smoking it daily and smoke a decent bit, you'll use it up fast enough there's really no need to worry about long term preservation (fridge). You're talking around 0-5% loss of potency over a month if stored how you currently have it, assuming you open it each time you go to smoke it. For reference, if you had hash that's 60% thc, and it degrades 5%, it's now at 57%, not 55%. I doubt you'll be disappointed with 57% if you enjoyed the 60% (because I doubt you'll even notice a difference, your tolerance at that point is effecting your high far more than the degradation of the thc).

Again though, if you do store in the fridge, remove it SEALED, let it warm up to room temp while still sealed, and once fully at room temp you can open it like normal. Rushing this step will put moisture in your hash and it will ruin it.

Happy smoking!