[help] 7+ 10.1.1 jb

Hey, so I haven't been on reddit and keeping up with the jb updates for the 7 but I just read one where it seems luca's not trying to push for an update. SO I'm just going to use Yalu beta 3. Since Luca said it's as stable as 10.2. Anyways. I really need help. I tried searching but mehh, I need a tutorial. Or any advice on what to do once jailbroken, I know there's an issue with service and iMessages not working so I need the code and ssh or terminal or mterminal not sure what to use , also sub fix tweak use it or use codes? I just seen a post about making it a shortcut so it won't be much of a hassle. If you can point me in the right directions would appreciate it . Thanks!

Edit: so I've managed to jailbreak my iPhone 7+ using Yalu beta 3. At first I did have some crashing as I added tweaks . Mostly when I installed one it would crash. This would happen a couple times after installing a tweak. I've been jail broken for almost a full day now with NO crashes or randome restorings! I love it! It IS stable, I wish I did it sooner.. I guess I was just scared of forcing an update . Anyways I want to thank all of you for helping! Tweaks I have on my 7+jb are ... appsync, date in status bar (love this one ), flex3, iblacklist (really love this one), iCleaner (freed up 3gigs!!), minimal host blocker, mterminal, cylinder, tether me( really needed this one since my carrier doesn't provide hot spot), xcon and zeppelin! My phones stayed jb over night and it feeels amazing. Only down side is the 7day trial... I mean renewal of mach_portal and the substrate fix code.. but meh I have "MY" phone back. Thanks a bunch! I would highly recommend jailbreaking. I know you might read it's unstable and not worth it as I did , but as I see it so far it's as stable as 10.2.