Just have a look around your bedroom, lounge, ktichen and think about lugging your beds, wardrobes, appliances, tv, sofas, dining table etc It is HELL don't do it.
We moved ourselves years ago, then after we had bought lots of things like all of the above we had pickfords move us, mainly because of the insurance for damage at both ends in case they put a huge hole in the wall of the house we were leaving.
We moved 125 miles, from 3 bed to 3 bed moved out one day, they stored our stuff over night then moved us in the next day. We packed ourselves although now I would get someone to do it. Cost £1200.
Trying to pack with kids is a nightmare and just think about all your cabinets and all the stuff you have in them, it will take you weeks to pack and where are you going to store it all????
If a removal company packs you, you have 2 days of chaos and the second day you are moving out!