Alhamdulillah, just with the work given by God, whatever your important work is halal. Because even though tired it will still be a blessing if you do your work because of God.
Intention is important, which is why in starting each job niati lillahi ta'ala, so that when you feel tired come greeting you are not easy to complain or feel bored with the gift given by God.
After all, you have to remember, that true happiness does need the name of struggle, because brilliant results do need to be picked up by hard work and full confidence in the creator.
Therefore, work because of God and for Allah, so that every tiredness you feel God pays with sustenance that is abundant in blessings.
Because, if your intention is right because of Allah, then surely Allah will also repay the good intentions that exist in your heart with good for good.
In addition, if God has become your reference in work, then every tiredness you feel God will pay with His merit and kindness.
Allah will not let your sweat fall in vain, Allah will not make your energy wasted, because Allah has provided a perfect reply for you.
Because if God is your reference to seek sustenance, then God will give you sustenance that is certainly lawful. God will direct you to good things, so that good for good will follow your life.
Even though sometimes the road that you go through is not easy, then just believe when God is in the heart and you are number one, of course every step of you will feel light.
Give everything to Allah, because if Allah is your goal to get sustenance, then don't worry that you can't get a noble sustenance.
God guarantees you, while your heart still refers to Him. And Allah, too, will erase your fatigue with the reward of good fortune and blessings, when you keep putting God in your heart.
Because God has everything, whether it is your work, the sustenance that you expect, and success in everything, then never forget to make God the main one in work and effort.
Believe me, if your work is for God, then your tiredness will certainly not be left alone, God will repay your labor perfectly.