its not meant to be something everyone gets quickly, most of my server doesn't have it, and i got lvl 9 ba before you could farm adv threads at all so think how i feel now that i have 370 adv threads i cant use at all.

you get about 1 point per week from SA farming, yes it will take a while but some events(like the current time limited shop) also let you get cheap/free adv threads, you c*so farm them from spacetime shop and from spacetime packs. they have been adding more ways to get these threads for free, if you want to finish faster, try recharging for it instead of complaining.

14*500 = 7000 spacetime points a month. 7000/800=8.75 adv threads a month

25 possible threads from winning spacetime a month

~32 adv threads from sa a month

so you get about 65 adv threads a month if your strong enough, you should get at least 32 a month for free from sa. which while it will take time to do for free(this game needs money to keep the servers running so they want to encourage you to pay) it is possible. also you get hundreds of adv threads for leveling during the rebate which makes it alot easier than you think at first glance.