Wordpress Website Support & Updates

I am looking for someone to assist with our Wordpress website which is already running and occasionally needs updated and small adjustments made from time to time. I would also like to be shown how to carry out changes myself over time, but the support is the priority for now. You must have very good knowledge of Wordpress and able to be trusted with confidentiality etc. Updates to the site would be fro example; Adding and removing banners, images and text to slides, adding pages, plus other types of support like updating Wordpress and making sure everything is still working after the updates (links etc) - (all being responsive). The site has been produced using Divi so knowledge of this is essential too.