If you got stuck in the TOEFL or IELTS speaking task use the following method :
Perhaps you can stuck at the beginning so at least you have two points to support your argument and once you have written those two points that could really help you :
Use first , second perhaps third and then finally when you ordering your point this will helps you pace yourself .
- Once you trying to connect from one point to the next and you're not sure what to say .You could try using transition like so ,in fact , actually ,will as a matter of fact .
That way using a trick to not say 'ah amm' and you're being professional