5 mans are hard for boxers yes.

LFR raids are only in 25 man, and are very easy, does not take long at all to learn the fights.

LFR raids have slightly worse gear than the normal version.

LFR dungeons have exact same gear as getting 5 people and entering manually.

My recommendation is to PVP a lot, and eventually convert HP into JP, get what PVE gear you can from the vendor, then take 2 chars at a time through some LFR heroics (the 3 new ones) and all dps at once through LFR raids asap.