your elytra troubles are likely to simply be lag
the mob griefing is off so that the spawn area and certain other special areas cant be destroyed or defaced by random mobs or mobs spawned/led by a player

the only resourcepacks you cant use are the ones that make certain blocks transparent giving an limited xray

@_Confederacy_ Advice: be careful who you trust, some players are only helping you so they can kill you later.

_Confederacy_ is right you may want to go on exploratory trips and build trust between you and the people who want to join and get some allies to help defend you and provide services to your village but dont actually live there, they can be the older players i mentioned earlier

A good piece of advice find some older players you can trust who can vet the people trying to join up with you

@Jordi223b Herobrine isn't real :/

we know but its fun to pretend

found another good webcomic you may have seen it around the internet but here is its website and the first comic
http://www.businesscat.happyjar.com/comic/coffee/

@Sirchristopher10 Btw there is a long story with so called enitiy 303

can you link it?

@_Confederacy_ My friend has seen more odd activity on his computer, which we have credited to various "entitys" that we gave names too (keep in mind we were both around 9 at the time)
One of the things he told me over phone was arrows falling out of the sky that had no texture, they were just black. He sent me a picture of it and I've lost said picture, I'm going to contact him to get more info.

sounds like this little beauty
http://minecraft-the-haunted.wikia.com/wiki/Ghost_Bow

@_Confederacy_ Some say he stalks you, some have events in their worlds that could be herobrine-like behavior (me) some have seen him (me) and some say he just seeks you out and kills you, ruins your world and computer...

There are many different explanations.

Only two main ones though. The Stalker version that appears sporadically builds strange things, destroys others and sometimes raids and griefs. Then there is the Aggressive version that actively chooses a player or group of players and torments them with traps, lures them into his personal dungeons to die or simply destroys the worlds youve put any amount of effort into.

@Ealdwine_Drasax Yeah but it would be cool. What does he even do?

HeroBrine haunts the digital fields and highways of Minecraft Cursing those that see him or cross his path....a true Ghost in the Machine....<insert spooky noises>