Quite a few of her promises are magical fairy land, not least the minimum wage and university-sponsoring reforms.
Only France has ever managed the former promise, and at great cost [of unemployment] and union conflict. Britain would be in pioneering land. Ireland managed it through a statistical anomaly for one year. Other than that there's no precedent.
In 2020 assuming the long-run average, the median income will be 29 700. That means the minimum wage would be 17 820, or 9.3 an hour. That's quite a hike over just two financial years.
Unless she plans to see the median income fall while the minimum wage rises, which would make that goal achievable. But shit.