Ethel is quite right.
If you get another three points the DVLA will revoke your full licence and you will revert to provisional status. There is no appeal against this action and your personal circumstances will not be considered.
You will be able to drive again as soon as you apply for and are issued with a new provisional licence, but you must adhere to the provisional restrictions (be accompanied by a qualified driver, display 'L' plates, no motorway driving, etc.).
You will have to take your test again (both parts) and the six points will remain on your licence. You cannot have it revoked in this way a second time, but a further six points, if they are accrued within three years of the first, will result in a minimum disqualification of six months. (This will be an entire disqualification, not reversion to provisonal status).