Hi.
Welcome to support sites on the internet.
Support sites often have sections designated as "FAQs"
FAQ stands for (F)requently (A)sked (Q)uestions.
These sections answer questions that developers hope people will look before asking but more often than not seem to be ignored.
Your question is answered in our
FAQ section in the question, aptly named,
How do I make myself admin? (3 simple foolproof methods)