Unlike the corona virus which enter humans without invitation but through man's carelessness or through contact with infected people or infected surfaces, Jesus does not just invade people. Either Jesus knocks or we have to invite Him into our lives.
How do we invite Him and when does He accept invitation ? Because of Adam's sin we inherited the sin nature. In short we became sinners. As sinners we do contrary to God's laws. Our conscience and the Holy Spirit convict us of our sins, and cause us to sense that we have sinned. We either realize(accept) or deny that we did something wrong. Sooner or later we will realize that sin nature is very strong and keep us under its control. Only Jesus can liberate us from sin.
We repent or feel sorry or regret that we did wrong and ask Jesus to save us from our sins. If you have a Christian friend maybe you can call him or her on the phone and ask him or her to explain to you the details.