Slow website speed assistance please

I have a small stick-making hobbie business and my nephew created a Mystile wedsite for me a few years ago. I do not wish to keep hassling him for help since he is trying to run his own business and has three young children that naturally takes up a lot of his time. About 6 months ago I uploaded some new pictures to try and encourage some business and since then the site has slowed down. I have run several analysis to try and find the reason and learnt very little, probably because you could fit my IT skills in a flees back pocket!

I found a recommendation on this forum to use GTMetrix for a more informed analysis. This identified 4 key areas giving low scores…. My website is called http://www.molecountrysticks.com

1. (Use a Content Delivery Network…. Specify your CDNs in your User Settings. There are 29 static components that are not on CDN.

2. Make fewer HTTP requests…. This page has 13 external Javascript scripts. Try combining them into one. This page has 7 external stylesheets. Try combining them into one.

3. Use cook-free domains…. There are 11 components that are not cookie-free.

4. Minify JavaScript and CSS…. here are 3 components that can be minified

inline <style> tag #3
inline <script> tag #1
inline <script> tag #2

I looks like the main problems are identified here but how do I fix them? Is it possible that WP have fix-its and how-to’s on their site or could I Google search for videos how-to’s. Or is that simple that someone on hear could tell me how?

Any assistance would be much appreciated.. Thanks for taking the time to read this… Kenny