You can be bailed any number of times and there is no time limit. However, if they are repeatedly bailing you and not progressing the investigation it can be an abuse of process. There is no reason why a GBHB case should take 9 months to progress.

You will not be locked up on Friday as they cannot create a new reason to refuse bail if the circumstances haven't changed so don't worry there. Even if charged they will bail you seeing as you have already been on bail for 9 months.

If not charged I would speak to the Officer in the Case who will be a DC or DS. Do NOT get arsey with the bloke. Politely explain that this case has ruined your life and that the last 9 months have been hell. Chances are the bloke does sympathise with you. Getting him on side could help when he next speaks to the CPS and he may be able to nudge them in the direction of an NFA (no further action).

If you are charged do not make any reply to the charge.

However, I would say that the length of time elapsed is a good sign. If it was that striaght forward a case they would have charged you long ago.

Good luck.