As an older person, how can I keep up with technological advances?
Set small milestones. search for tutorials for what you want to learn. take some time each week like an hour and spend this time following a YouTube tutorial for example.
The hardest boundary to overcome is learning the correct terminology to input into a search engine to get the results you want. 
for example if you are on a government website and you cannot figure out how to select something in the drop-down menu. You would probably not know it's called a drop down menu. sou you would spend a lot of time figuring out you had to press enter. If you want to keep up with technological advances and you have some form of help in friends or family. You could show them a couple of tech things. and ask them what things are called and write it down. that way if you have a question later when they are not at hand you will know what to input in a search engine (like google) to know what you have to do.
Don't be afraid to ask people for help. but do try and write solutions down so they will not have to explain the same thing twice.
Can you turn these into bullet points? I understand bullet points better than paragraphs.