Since I have not been blessed with children, what is the solution, given that adoption is forbidden?

Everything is in the hands of Allah; He apportions it according to His wisdom and will, and that includes children. Therefore, whoever has been denied children should know that this is by Allah's decree. They must be patient and content, and not despair of Allah. They have an example in Zechariah (peace be upon him), whose supplication Allah answered, and He blessed him with John. It is advised to seek forgiveness and remember Allah, while also taking practical measures such as seeking medical treatment and consulting doctors. It is also recommended to sponsor an orphan, for it contains much good and helps in enduring psychological burdens.