Page Speed Optimizarion

Hi...
I have a website with high loading time as 25 sec. Can you suggest me the page speed optimization tips to reduce page?

Abstain from point of arrival diverts.

Empower pressure.

Minify CSS, HTML, JavaScript.

Organize over the-overlay content.

Accelerate server reaction time.

Dispense with render-blocking JavaScript.

Influence program storing.

Upgrade pictures.