I can’t stop jerking off

Stay busy and if an app is exposing you to content that gives you urges delete it. At least until you can stop yourself

Try to pick up different hobbies and also if possible either delete enabling apps (twitter, instagram, ect.) or reset the feed on your apps and do not interact with anything sexual it will cause less triggers and help you stay grounded especially if you seek out helpful healing posts that keep you accountable and distracted

Find something that you can spend time and enjoy it Like sports, reading, gaming, stocks, tv shows Whatever you like

A piece of advice I can give you is DONT feed the urges or fantasies you have. The more you spend time thinking about them the more you will struggle to defend from temptation.