Less good news - it is really important.
If you are frustrated that you are brushing but we are still pointing out the problems with your teeth and gums, do not be discouraged. You are either not brushing in the right places - by the gum line. Or you are not brushing long enough.
Concentrate on the gum line. Concentrate on the gum line. Concentrate on the gum line.
And 10 to 15 seconds can seem a long time to brush, but it is not enough. Two minutes brushing by the gum line will do it.
Please do it. It is easy. It is really important.