The phrase "to maximise this opportunity" means to make the most out of the chance you have been given. It suggests utilizing the opportunity to its fullest potential and getting the best possible outcome from it. Full definition
It is also important to offer support for what children with additional needs can do, so as to reduce restrictions on their participation and maximise their opportunities for success. (kidsmatter.edu.au)
Meeting people is all about doing something new to maximise your opportunities in finding a great date with someone you can click with. (uk.match.com)
To maximise every opportunity of finding love online it is important to ensure that you are honest with yourself and those who you are matched to. (eharmony.co.uk)