Check the "English Proficiency" page of your #1 choice school. If it says 80 or 83, submit today. If it says 90, bookmark ETS and book your retest for 4 weeks from now. Did you score 88 on the 2021 TOEFL? Where are you applying? Let me know in the comments – I can help you interpret school-specific requirements.
If you just received a TOEFL iBT score of 88 , you are likely in a grey zone. You didn't fail, but you didn't hit the "magic 100" either.