Spending in US: How to Increase your credit score

1. Sign up for a starter no-credit/student credit card
2. Use the credit card and pay your bills on time for 6months
3. Check credit score
4. Sign up for another starter no-credit/student credit card
5. Use the 2nd credit card and pay your bills on time for 6months
6. Check credit score
7. Request a higher credit limit on both cards
8. Use both credit cards and pay your bills on time for 6months
9. Check credit score
10. Sign up for a medium-level credit card
11. Use this 3rd credit card and pay your bills on time for 6months
12. Sign up for loans
13. Pay your loan bills on time for 6months
14. Check credit score
15. Request a higher credit limit on all cards
16. Sign up for a high-level credit card
17. Use this 4th credit card and pay your bills on time for 6months
18. Check credit score
19. Now Sign up for multiple high-level credit cards
20. Use the cards with maximum cashback for your entire life.