The government advise and rules regarding travel abroad is constantly changing and no one knows exactly what the situation is likely to be in a few weeks or months. If you have a holiday book abroad later this year you may well find that many of the restrictions have been lifted and you can go without too much hassle. You do however need to check what the current rules are in the country that you are going to as it could be quite different from ours. Some countries may even restrict travel into the country from the UK. You may still require a test when you land in the country too.
It is important to try and stay safe when abroad. You need to use some common sense and ensure that you regularly wash your hands. You should also continue to use hand sanitiser where you can but be sure not to have it in your hand luggage as it is flammable and is not permitted in hand luggage on a plane. Make sure that you have insurance in place that will cover you should you become ill and need to return home or require medical treatment abroad.