Our house is full of termite infected
Stop self treating the property at this point with the expectation of solving the issue. It has not worked and frankly time is your enemy (just as much as the termites are)
The more time that elapses, the more money it will cost
Drilling holes in a termite infected are is no certain guarantee to kill the total infestation.
Hire a professional Exterminator
Hire a professional contractor
Remove all affected/infected and damaged wood
Correct any entry points of water damage
If money and do it yourself savings is something you are interested in, then invest the time in removing personal belongings, various fixtures, and prep work the contractor and exterminator suggest be done. The more you are able to salvage *(if that is your goal), the more you could possibly re-use
Work as a team with your municipality, contractors, family, etc....
It is possible that the structure is beyond repair, i.e. to be condemned. Again, work with professionals to determine this.


Again, it is not good news, but the more time termites have to work, the more damage they can do. There comes a point your life is at risk.

If the property is NOT as bad as it sounds from what you have said, then steps 1-9 are all still applicable. Your time and money will be better spent in this capacity.