Welcome Shawna!
I went 3 months in SIM, and this is now my 4th week being live. My last 3 weeks in SIM before going live, I was green every day and with really good $'s. I had my life planned and was dreaming big. It felt awesome.
Going live is so much different (for me) and first two days I got lucky (bad behavior was rewarded), then the next week was down $500 by end of the week. Then last week I closed green, but barely... This week I'm break even as of today (yesterday I was 0/5 trades... but today I chipped away at losses).
If I did it again, I would have only spent a month in SIM to practice hotkeys and flow, and then I would have gone live starting month two with very, very low shares for each trade ($25 risk per trade) and do that for 2 months.
My new expectation ---I will likely be trading live for at least another 6-8 more months before I hope to get where I was in SIM before live (the video game experience). As of now, my heart can't take big shares and my goal is to just be green each week after commissions. Sad goal, I know... I had so much fun in SIM
So... you should go live as soon as you can, but start really small, protect your account and just try and be green each week. Or perhaps you are a just really good at this and will have a better experience than me. But only one way to find out 🙂
As for fills, I find a lot more slippage on entries and exits, and stop losses as well. Your trade log file looks so clean in SIM and is massive when trading live.