Well, that’s a long way out. That being said, I would suggest focusing on getting good grades and planning to take standardized tests. As far as Ec’s go, try to find some which are online. I know many have been canceled but some have not. See if there is anything that you can do online. I would say 1/2 of my kids things have been canceled and the rest are online. Some things are even easier to do since you don’t have to drive or stay there. Some of the Summer camps are even holding online sessions. If you are an athlete, there are virtual training sessions and even virtual events.
You might be able to get some friends together and help with something Covid related or help in an area that you are interested in. Don’t give up because of Covid.