i already did all of that, i dont know the best way to put my question out there without sound confusing, i think im probably missing some minor detail, so i will basically run my program once and put in there the results it return to me in that attempt, i think in that way i can be more clear on what i want to achieve

binary entropy = 1110110011101110100101110000101010111110011000011011100101000111110000101101111 0000001101110000001010001000011001110111100010111
hex entropy = ecee970abe61b947c2de06e0510cef17
hashed entropy (SHA256) = ce8c86f8fffc0e8d668013df98baca523238d4308a6139d0b2950daef3dbc3e9
resulted checksum = 1100
mnemonic in binary represation and in words representation below as well as their position in the world list  = ['11101100111', '01110100101', '11000010101', '01111100110', '00011011100', '10100011111', '00001011011', '11000000110', '11100000010', '10001000011', '00111011110', '00101111100']
undo 1895
input 933
section 1557
lamp 998
breeze 220
physical 1311
arena 91
school 1542
theory 1794
mask 1091
design 478
convince 380
['undo', 'input', 'section', 'lamp', 'breeze', 'physical', 'arena', 'school', 'theory', 'mask', 'design', 'convince']
after generating all that i then use pbkdf2 and hash it with sha512 in which will return me the actual seed(using an blank password as password)

seed = d213b3de1949e716b2e5fb96ae62efa0c27843debf4372e8840ebc7f87024f6cb10126e51bbfecd 362ac21105edef4c799b09c973d05a5b566b5173e185e7927

everything goes well until now, i have the seed, i have the entropy, etc, and everytime i generate an new one it can be verified at https://iancoleman.io/bip39/ and it works correctly, but the issue im having is what i do after getting the seed to generate the master private key ? thats what i aint understanding, how can i use the seed above to generate an key? which functions should i use? thanks and sorry if this sounds confusing

So basically i am trying to create my own crypto wallet application in python, i have generated the random entropy, calculated the checksum, generated the 12 words and then generated the root seed using pbkdf2, but after generating the seed I'm kinda lost, i dont know how i can generate the master key and the chaincode, and then generating the public and private keys, lets put for example i have this root seed 1f8c67bc66355f62f6c63752803599cc6e4a05eac6dd63e05e858329f3656ed3c868bd428a4218b 4eb92e0fe5e774874c4ab270b8d1377ddc0aea6a797682342 what should i do with it to generate the master private key and then the following child public/private keys? thanks, i'm very new to this in general so sorry if there is any issue with my question

also i don't want to use any pre built script that generates wallets to me, thats why i am trying to create one by myself cause i want to understand better how it works by doing it manually