In what federal body do all bills concerning taxes/revenue originate?

House of Representatives

Explanation:

House of Representatives, it is the lower house of United States congress that is made up of the House of Representatives and Senate, which is the body of officials that are elected as well as represent the individual districts in their home states.

The work involve the members to vote and pass the laws. And the numbers of the house members is determined through the state population and their term of two years.

Therefore, the federal body of House of Representatives are the one who perform the bills in relation to the taxes or revenue originate.

if you use only 25 for your entertainment and only 200 for the groceries that you really need and take out the 50 per month for the computer then that should be enough