Agree entirely with olga and benni.
In any case, do you seriously think that someone on this site would advise you about a way to commit suicide. Get real, we're all here because we want to survive and recover, and we want everyone else here to do the same - including you.
Death is a one-way street and in 99.999999999999999999999999999999% of cases (you get the picture) there is another option.
You think your mother doesn't like you - my mother didn't like me either, so I left. That was a long time ago, and I've survived in spite of her.
And just for the record, a bottle of aspirin would be very unlikely to kill you. What it would do though, is cause severe damage to the lining of your stomach and internal bleeding. So it would be all pain and no gain.