weight loss advice

i figure nows the best time to act on something i’ve always wanted, which is to lose weight. I’m 5’7” and 150lbs, and i’m looking to change that. i see so many of you gorgeous girls on here who’ve lost a shit ton of weight and i just don’t know how to get started and where. if you have any helpful tips or advice, they’d be greatly appreciated❤️❤️❤️