The links below take you to different webpages offering advice about you can organise IELTS and TOEFL self-study.
>>> Do you know which test you need to take for the university that you are planning to go?
>>> What is the required test score that the university has for international students?
>>> Have you taken IELTS or TOEFL before?
>>> If not, when you will you take IELTS or TOEFL for the first time?
>>> If yes, then what is your plan for improving your test score through self-study?