Hello Mrs G, welcome aboard Filipino UK

I do hope your Visit visa will be granted and wish you good luck with that.
Your previous visa refusals will be an influence on this latest application in that the caseworkers and the ECO will apply additional scrutiny in connection with your strong social, economic and family ties that would compel you to leave the UK at the end of your requested temporary stay. Hopefully you'll have significantly improved the submitted reasons enough to convince the ECO that you'll return.
Given that this latest application is your 4th you should expect the ECO to also carefully review your stated reasons for requesting a visit at this time.

Any future settlement route visa application will not be impacted by visit visa refusals. However there is a strong requirement that you will both have met in person.