It is important to practise your IELTS speaking with the right sort of materials: the exam tests specific speaking abilities and is not like a conversation. Many sites offer IELTS speaking questions – not all are to be entirely trusted. Here are the best examples I have found, so try some of these.
A complete test
Splendid Speaking offers a complete test.
British Council – parts 1 & 2 (complete with advice)
British Council – part 3 (advice)
Part 1 questions
Using English – Top Recommendation