The exchange rate remains poor so even if you could jump on a flight tomorrow it is going to be expensive. There is going to be a new normal and there has to be a new awareness of socialising.
Currently UK citizens are prohibited to travel to America and on arrival must self isolate for 14 days.
If you are planning a visit in 2020 you must do your research carefully and remember that if you are visiting multiple states that the laws might vary. As it currently stands DC is still in lockdown and Washington, Oregon, California, Wyoming, Illinois, Virginia and New York states have partial lockdowns. All other states are reopened. Even states that are reopened with full service restaurants are operating at a capacity of between 25% to 50% to protect others.
See how to make masks with no sewing
States that have no mask wearing requirements are:
Nevada, South Dakota, Montana, Idaho, Wyoming, Wisconsin, Kentucky, South Carolina
States that masks must be worn especially in business settings or where social distancing is impossible are:
New Mexico, Illinois, Michigan, Virginia, Maryland, Delaware, New York, Pennsylvania, New Jersey, Connecticut, Rhode Island, Massachusetts, Maine
All others have some requirements