You may find it easier than you would expect. There's no doubt that after a bankruptcy, your credit score will be thrashed, and the bankruptcy will remain on your credit report for seven to 10 years (10 if you file Chapter 7; seven if you file Chapter 13). There's no minimizing the financial "fun" of a bankruptcy.
That said, rebuilding your credit after a bankruptcy can definitely be done. Your first move should probably be to apply for a secured credit card. These are credit cards that work like any credit card, except for an important distinction: you'll put down a refundable deposit and then use the secured credit card to make purchases. A large chunk of your credit score is determined by your payment history, so after a year or two of using the secured credit card responsibly, the credit card company you have the card with will likely give you that refundable deposit back - and invite you to apply for an unsecured credit card with them. Then you can continue to build the other areas of your credit, such as your credit history length and your credit utilization ratio.
That said, you may be able to successfully apply for a no-frills, or not many frills, credit card designed for people with fair or bad credit. You could try doing that before applying for a secured credit card, if you're not excited about paying money upfront, money that, again, is refundable.
In any case, you should find with a few select credit card issuers and lenders like car dealerships, that life still goes on, and you'll still be lent money (albeit, likely at insanely high interest rates). After a bankruptcy, with your worst debts hopefully discharged and behind you, lenders know that you probably have more money now to pay off anything you borrow.
Learn more about credit card options for building credit after bankruptcy.