Like, how did they manage to do such enormous task in terms of practical reasons, like the inner organization of the party, their main political goals, ways to create class consciusness, etc.
Also if there is a good read about it I would really appreciate it
Hey there, I let you in on another secret. It wasn't the Bolsheviks who did the revolution. It was the material conditions and a multitude of groups that were active and the people in spontaneous manner organizing who did it. The bolsheviks worked alongside those groups, with those groups and in those groups and used tactics to push for unity at some moments and pushed to make conflict explicit at others. Then they used the organs of power to push for control, which was also helped by the then support of military organized groups and worker councils.
That said a lot of time was spend in the decades before in organizing and doing organizational rosters, doing statistics (e.g. how many workers are in which city, how many are unionized, how many are in the party etc. etc. - see the Lenin museum in Tampere for more information) and having European networks of exchange as well as practical experience organizing people and having theoretical reading groups (several hundreds of those - which weren't always bolsheviki though).
the Bolsheviks definitely performed a vanguard function in relation to the other groups and held the general trust of the masses during the revolution, given their majority in the Soviets and the way the non-party masses would respect the parties' tactical directives published in Pravda. While they didn't single-handedly perform the revolution with their members, they built up a party that was able to co-ordinate and bind all the disparate masses, organised and not, into a cohesive strategy, which is all a vanguard party is really supposed to do.