Asalamualaikum respected mufti saheb please help with the following:

1. when going toilet should you wash the front first or the back or is there no difference?

2. when washing the back should you put the hand from the front side to the back or direct to the back?

3. after doing istibra and washing myself i put tissue in underwear incase more drops come out and i go and walk around normally. before i do wudhu i take the tissue out. when i am taking the tissue out do i have to wash my private part again?

4. i read that mazi can sometimes come out without a person even realising. if this is the case how will you know if you still have wudhu or not?

please help me with these issues. Jazakallahu Khayrun you are doing very very good work for the ummah Insha Allah you will get great great rewards.