1. It's a Monday, everyone's already completed everything by now. Try Tuesdays and Fridays.
2. If that isn't the case, try the app Destiny LFG, changed my life.
3. No one wants 30- players anymore. It's all about 31 and 32, so unless you got a tight group of friends on here, you're gonna have a bad time with a 30. I haven't checked your characters but I know that 32s get invited before they even post LFG sometimes.
4. Solo Crota lol
Okay so you have a 31, it may be just a shortage of players on the 360. Everyone I've seen on here is either PS4 or Xbone. Honestly if I had the same console as you I would shoot you a friend request, but sadly that's not the case. Time of day has something to do with it as well. Around dinner time wherever you are is probably best. You can also use emojis to make yourself seem interesting lol