Brave people died defending your right to vote. You should at least turn up and spoil your ballot paper.
Vote for policies website is up and running for the 2019 election. https://voteforpolicies.org.uk For those that have not used it before it asks you what policy areas you are interested in and then presents you with the policies of the major parties in your area but hides the party name. Pick your favourite polices and see which party policies represent you best