Would this retail chain be sucessful?

[Will]

Hey there, wondering if any business/economics experts could help out.

I'm 17, currently taking various courses in business.

The market for economy retail 'mini supermarkets' has grown by 300% since 2008 (for obvious reasons).

As the market grows, there will be opportunity for small business to get a share of the expanding market value, like i'm proposing to do here, it will channel various economy brands (in the same form of Poundland), and 'should' be a success.

When i'm 18, I will receive upwards of £3,000,000 due to a family member passing away, and I'm, seriously considering making something of this.

If anyone has any comments/ suggestions, please comment below.