Yearly health check

Coming up to 2 years on T, do I need a yearly health check this year? If so how soon does it need to be done (my 2 years will be in April) because I’m hoping to be seen by the NHS by August, also I can’t remember what’s included in the health check - do I need to get bloods as well in April and do I need another follow up session? I’m stressing about the cost and wondering if there’s anything I can do to make it cheaper 😅