Meditation and relaxation

Hello everyone 

Just wondering if anyone could share any links or info on meditation please?

I am struggling a little atm as my boy is struggling going back to school after half term and I’ve had a long night with little sleep and pretty much watched YouTube videos on autism. 
Also my parents are on holiday which always makes me really anxious as a few years ago while on holiday he had an aneurysm and a stroke which was probably one of the worst times in my life. 

Thanks for listening