Don't binge like that at home, it's completely over the top - 2C-B taken close before or after an MDMA experience is beautiful, but the experience is not meant to be all weekend - it will just lose its beauty and leave you more and more monged out, which is not worth it.
If you want to trip for a long time, get a long acting compound like DOC or AMT next time...
In a week you'll be lucky to pull of two satisfying 2C-B trips, and using a lot of MDMA isn't a great idea either.
I appreciate that you don't often get a chance, but in my experience being greedy - and especially pushing materials that have limits like tolerance - turns out to have a sketchy result... you can't force it to be special sitting at home going for such a long stretch.. Smoking a lot of hash wouldn't be that abnormal so I'd just mostly stick to that and maybe drop one or two other things in that week... but this plan is ridiculous and pointless sorry.
And yeah HPPD is relatively common with 2C-X esp the halo's, and the risk becomes more significant if you abuse them..