Toefl ibt or pbt?

[Da Designer]

hello . i am new here and i kinda liked this forum .
i need to know one thing , i hope u will reply. i took toefl PBT exam a week back. Test was kinda easy but yet i am afraid i wll not pass it because i was out of time , and i left almost 16 reading questions.
i did well at listening and writing part .

if i will have to take the test again , i am supposed to take it just after the result will be announced as i do not have much time. is toefl ibt more tough than BPT?? bcoz in that case i will have to take IBT .

Plz i need a bit guidance.