Islam invites the Muslim to look at life with a spirit of love and optimism. You, as a Muslim, you should consider your points of strength, improve the positive aspects and good things and disregard the negative aspects and mistakes.
In other words, enjoy the beauty of the rose and disregard its thorn; take pleasure of the night’s peace and serenity and overlook its blackness; and avail benefit of the light of the sun and avoid its heat. Worries, distresses and grieve prevent you from recognising the favours that Allah has given you.
What the benefit in giving your focus and your feelings on some incidents that has passed so as to increase your pain and make you fall apart? No matter the ordeals and tribulations you encounter, please don’t grieve for Allah is with you.
How is it beautiful to be with Allah and inculcate in your heart that Allah is with you and will respond to you; as He responds to the Prophets before you! Allah is the One Who responded to Prophet Muhammad and saved him when he was alone in the cave with his close companion Abu Bakr and the polytheists were outside and very close to kill him.
Allah is the One Who saved Prophet Jonah when he cried through darkness in the bottom of whale while in bottom of oceans. He is the One Who answered Prophet Zachariah by amending his wife and granting him John in an old age.
He is the One Who responded to Prophet Job by curing him and removing from him the affliction of sickness. He is the One Who subjected the iron for Prophet David, subjected the wind for Prophet Solomon, splitted the sea for Prophet Moses, saved Prophet Saleh and Prophet Hud from the transgressors and the wrong doers, changed the fire to be comfort and peace upon Prophet Ibrahim and saved Ismail and ransomed him with a great sacrifice.
Al-Rabai’ Ibn Khuthaim (may Allah be pleased with him) said: Allah has taken an oath that whoever believes in Him and trusts Him, He will suffice him, guide him, save him, and respond to him. Outstandingly, there is a good for a believer in everything and in all of his affairs. Hunger, sickness, poverty or any ordeal if they are patiently well tolerated, they will bring their own rewards from Allah. Nothing is ever lost with Him. He keeps it as a trust with him until He gives it to you in the Hereafter. Abu Hurairah (May Allah be pleased with him) reported that the Prophet (ﷺ) said: "Never a believer is stricken with a discomfort, an illness, an anxiety, a grief or mental worry or even the pricking of a thorn but Allah will expiate his sins on account of his patience." Bukhari & Muslim