Supplement pills to support my bf

Who said breastfeeding is more cheaper than buying formula...maybe cheaper for others but totally no for me, i spend few hundreds of Ringgit per month to buy all the supplement pills for myself : -
Pramilet's Multivitamin - RM20
Bio-Enhanced's Calcium - RM45
Neurogain - RM55
Elken's Colostrum (IG6) - RM179
Elken's Spirulina - RM149
Elken's Ester-C250 - RM68

All the above pills can be finished within a month except the Ester-C250. I only take Ester-C250 once in a blue moon. So, sum up the first 5 is total RM448, then still have to buy Anmum and those expensive fish heads to boil the papaya soup for boosting the milk supply, see, that's not cheap at all. My friend said in fact taking Anmum is enough, but my milk supply dropped tremendously if i just take Anmum. Maybe she is a real "cow", but i am not...that's why i have to spend those money to boost my milk supply! I want to give the best to my Elijah, i won't regret though it's expensive to buy those supplements!

Excessively ?

These are the daily supplements to Jo.

Scott's Emulsion - 5ml per day
GNC Chewable C - 1 tablet per day
21st Century Calcium tablet - 1 tablet per day
Yakult - 1 bottle per day
Horizon Baby Yogurt - Depends, minimum twice a week
Nutrifresh - Half pack per day

Does excessive supplements will stop the body to produce its own immune system? But all the supplements seem like MUST to Jo as he doesn't like veges and fruits, so that he is quite easily to catch flu and cough.

I'm a weak woman so i really don't want my son like me, as my mind is "the more he takes, the harder he falls". But, my hubby said it's excessively for a little boy, is it? What to do?