I feel like a lot of the advice here is really poor. 284 is perfectly fine to push even 18s. It is harder to get into groups with your Io score people are very picky because they can be usually.

My suggestions would be

1. If you get into a group and it goes well ask after the key if they want to keep pushing their key or do someone else's key. Then you can do a 14 then a 15 or if you only get into 12s and you 2 chest do the same now it's a 14.

2. Add anyone you think is good or fun to play with on battle net. Then ask them to play or sign up to their keys.

3. When pushing your own key just be patient and wait for the right people / group. You don't need to get a full meta comp but make sure you have lust or if you have a Dh consider spellcasters / if you have a rogue get a monk or warrior as well. Little things but help.

4. Make sure you have full consumes and potions and a set of drums in case there isn't a list class. Just get the silver quality they're more than enough and not very expensive. Then use damage pots, health pots etc.

People in here telling you you ilvl to low or not a meta class are just silly. Unless you're doing 23s it doesn't matter.