Brexit MAY be good if we do the following- none of which I think will be politically feasible even if ukip manages to resurect itself
1: we cut Tarriffs
2: we significantly lower immigration which is the whole point of brexit- The brexiters have backtracked hugely on this because they have encountered reality.
3: we get a good speedy deal with Trump and other countries
4: we look to the long term, brexit will not be kind to the bulk of Leave voters- e.g. Wales receives huge subsidies from
The EU which will not be paid by Westminster.
As for your points
Money- as others have noted even if we have no deal what happens if the WTO rules that we need to pay off our debts to the EU first? We will probably pay a significant transition sum for continued privileged access. Brexit will also cost a small fortune to carry out interns if lawyers, renegotiating trade deals.
Laws- another largely bogus claim. We will be keeping the vast majority of the laws. Further decisions will be taken without us. As Helsetinre rightly points out this will not be enhancing British sovereignty
Control- I think Theresa May is probably the best leader we could hope for right now. And she is deciseivley mediocre. We have no opposition and Ukip is rightly on the trash heap of history.
Immigration- as above. I think we need to make this a priority but we need to. E aware of the facts- minister in agriculture wil be bringing in seasonal migrants to work the fields and businesses are continuously complaining of skill shortages. We need to come up with a realistic answer to this that the Leavers have not bothered to address.
Before I am accused of being pessimistic I think Britain will of course survive and even make a success out of doing it. However we need to be serious about the issues and not adopt the clown like mentality of messrs Farage and Co.