You choose what to work on and how big a piece of it. A sore shoulder, a low mood, the belief that you are too much: all of them are allowed, and so is starting small.

البقرة

۞وَٱلۡوَٰلِدَٰتُ يُرۡضِعۡنَ أَوۡلَٰدَهُنَّ حَوۡلَيۡنِ كَامِلَيۡنِۖ لِمَنۡ أَرَادَ أَن يُتِمَّ ٱلرَّضَاعَةَۚ وَعَلَى ٱلۡمَوۡلُودِ لَهُۥ رِزۡقُهُنَّ وَكِسۡوَتُهُنَّ بِٱلۡمَعۡرُوفِۚ لَا تُكَلَّفُ نَفۡسٌ إِلَّا وُسۡعَهَاۚ لَا تُضَآرَّ وَٰلِدَةُۢ بِوَلَدِهَا وَلَا مَوۡلُودࣱ لَّهُۥ بِوَلَدِهِۦۚ وَعَلَى ٱلۡوَارِثِ مِثۡلُ ذَٰلِكَۗ فَإِنۡ أَرَادَا فِصَالًا عَن تَرَاضࣲ مِّنۡهُمَا وَتَشَاوُرࣲ فَلَا جُنَاحَ عَلَيۡهِمَاۗ وَإِنۡ أَرَدتُّمۡ أَن تَسۡتَرۡضِعُوٓاْ أَوۡلَٰدَكُمۡ فَلَا جُنَاحَ عَلَيۡكُمۡ إِذَا سَلَّمۡتُم مَّآ ءَاتَيۡتُم بِٱلۡمَعۡرُوفِۗ وَٱتَّقُواْ ٱللَّهَ وَٱعۡلَمُوٓاْ أَنَّ ٱللَّهَ بِمَا تَعۡمَلُونَ بَصِيرࣱ‏

Mothers suckle their children for two whole years, if they wish to complete the term, and clothing and maintenance must be borne by the father in a fair manner. No one should be burdened with more than they can bear: no mother shall be made to suffer harm on account of her child, nor any father on account of his. The same duty is incumbent on the father’s heir. If, by mutual consent and consultation, the couple wish to wean [the child], they will not be blamed, nor will there be any blame if you wish to engage a wet nurse, provided you pay as agreed in a fair manner. Be mindful of God, knowing that He sees everything you do

Qur’an 2:233read it in the library