Do you think it's okay to have some now??

You should be absolutely fine!

Personally, I wouldn't do it.  While it sounds like your plan is not totally specific, it does appear that you are on a "full liquid diet" -- and I would honor that.  I would not assume that you can blend a banana, cottage cheese or peanut butter into a liquidy consistency and that counts as a liquid.  I actually think you will be fine if you have it, but, at just short of four years out, I have really come to appreciate the value of surrendering to the rules of this program and not trying to manage all the decisions myself.  Making decisions on my own is what got me into trouble in the first place.  So, if you've done it, I think you'll be fine -- but I want to support you in listening that little voice inside you that is questioning whether you should wander . . . All the best!