Need help masters.. DIY strategies for scratches, bubbles and car dents

[allier022407]

mga sir, ill be needing your help/advise on how can i tolerate those bubbles appearing on my car, is it problem ba nung nirepaint yung oto? it means di maganda yung gumawa? at may mga part na nabubuok pero maliit pa lang, kaya i assume na its tolerable, anyone here could tell on what would i do?

anyway my car is nissan sentra 94 ex saloon,

[1D4LV]

it could be rust forming inside.
the only thing to do is to have it sanded and repainted.