How to whiten your teeth if you have sensitive teeth already?

I've always have slightly yellowish teeth since i can remember and i had tried colgate whitening toothpaste but maybe i'm sensitive to it or something because everytime i use it, it causes scratches in my gums and lips and extremely sensitive teeth. well, ignoring that i persisted in using the whitening toothpaste for a month and its still the same color. i'm afraid to use the whitening strips because of the side effects that it may cause and i heard bleaching is really bad too. so is there another method or some other brand of toothpaste that can be recommended? thanks
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yellowish teeth can be due to wearing away of enamel, the dentin inside is yellow. The whitening paste will increase the sensitivity & cause non vital to your teeth later & it will get more darker & you will need to go in for a RCT & full crown. I will advise you to use regulat tooth paste.
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