If your lease turns out to be too expensive for your business it is on you. You signed it, you accepted the terms. This is why, during a lease negotiation, you need to be prepared to walk away.
Too often, retailers don’t walk away because they have invested considerably in their business and have not achieved the return they want, thinking that will come when the business is sold.
The reality is you make your most money while running this business. Choose this as your mindset, be prepared to walk away and any lease you ultimately sign will be better for you and the business.