You can’t get rid of it entirely. Cellulite is so extremely common, it occurs with 90% of women. Social media draws a disturbed image of this, as influencers heavily edit their posts. Things that could help are drinking enough water, a healthy and varied diet, exercising, and some claim massages to help.
However: if you want long term solution I recommend working on body positivity and starting your journey to loving and valuing yourself. You are your own worst critic and you shouldn’t bring yourself down over this, if you value yourself based on your looks then you will never be content.