I always wanted to work in firms, money being the reason (I don’t come from a financially sound family), but couldn’t manage to get a job at any law firm. Just got done with my law school and starting at a chambers with 18k salary. I wish to move to a firm in near future? Do law firms hire people who come from chambers with 6 months experience?

Practical advise, stick around for at least a year in your chamber. Firms, especially are always looking to hire at around 1-2 PQE, because its around that phase that a lot of campus hires decide that the law firm life is not what they are looking for, and teams have spaces to fill.