Hiya Braxton, welcome on board!
After a little while of cycling in and out of A & P, DN and equanimity finally one day I felt completely empty. Unlike anything I had ever felt. Instead of doing my usual meditation methods of working with visual, auditory and physical flow for awhile and then just noting the vanishings/do nothing. I decided to do nothing the entire time given that I felt extremely empty, peaceful and restful. I lost all concept of time in this sit, it was like I vanished. Nothing arose, I had literally no thoughts, no emotions and if any physical body sensations happened, I didn't notice them. It was a calm I could never have fathomed was possible to experience. It was like I didn't exist. When I opened my eyes it had been an hour and a half EXACTLY, but didn't even feel like 30 minutes had passed. The next morning when I woke up I was looking at my wall, just enjoying the peacefulness that was still with me, when all of a sudden everything went black for a split moment. I didn't really think much of it, but sense that sit there is ALWAYS a hint of peace with everything I do.
The first two lines I've emboldened sound very much like Knowledge of Equanimity experienced with strong concentration, the formless aspect of things ("it was like I vanished") in particular reminds me of High Equanimity. The last line I've put in bold could very well have been 1st path as it, combined with the other comments you've made about how that sense of peace has remained ever since, sounds like you're describing cessation which led to Path. You mention a few other things which cause my ears to prick up too...
The only way I can describe this is an emotion arises, I am very aware of it, but I don't feel the eurge to react towards it anymore.
Sounds promising.
It is almost like the emotion arising isn't even happening to me, it's just a happening.
Good insight into the empty, selfless nature of things as they are!
The since of peace and calm always there now. If I am not aware of it in a moment I can call on it on command.
What is it that prevents that sense of peace and calm from always being there?
I am starting to not even see my emotions or thoughts as me anymore.
Anatta! Investigate anything which still implies a "me".
I can't help but see the ability to control the insides as the exact same things as my outsides. I can't literally control the sun or the sounds arising, they are just waves of something arising and passing. That is all my insides are to me now and it is so freeing! I finally feel like I am in a state of surrender, most of the time.
Nice, it's great when there's no longer than distinction happening automatically as things can be seen much clearer. Look at how the senses just operate without "you" having to "do" anything; the light of the sun hits the eye and seeing occurs, a sounds hits the ear and hearing occurs but there's no "you" in that either!
So basically my question is, did I get stream entry? I haven't really been too concerned with where I am at because one of my teachers says that will just hold me back, but just this peace hasn't left and it has made me curious if this is what people are talking about.
While I admit that a goal orientated approach is useful, it's also potentially distracting so I think you're overall approach is a good one. Some people work better with a goal to work towards but others don't so just do what works best for you. It's useful to know "where" you are as it means that you can see more clearly how best to progress, but it's not the be all and end all so just roll with it. For what it's worth, I think you've probably gotten stream entry based on the way you describe things.
Stick around and let us know how you're getting on, and well done on (probably) landing 1st path!
Tommy