>>33513013
>I couldnt speak
(NTA) Yes, you could. You had the right to dismiss your lawyer and defend yourself if you wanted. You chose not to do that.
>Laywer refused to interview me or my witness
Then you should have got a different lawyer before the case went to trial. You could have; but you chose not to.
>>33512724 (OP)
>Would it be a mistrial
A mistrial is something that makes the entire trial *process* invalid. For example, if it turned out that some member of the jury was researching the case on the Internet instead of basing their decision on the evidence presented in the courtroom, that would be a mistrial. And a mistrial can only be declared by the judge at the original trial, and a whole new trial is then organised. If you've been convicted it is too late for a mistrial to be declared.
As the other anon said, an appeal is not the same as a retrial; it's not a do-over. Usually they are based on some question of legal procedure; for example, perhaps the judge's summing up of the evidence to the jury was overtly biased, or something Ilke that. It is occasionally possible for an appeal to happen because of new evidence coming to light; but that can only happen if the evidence was NOT AVAILABLE at the time of the original trial. If it was known about at the time of the original trial and the defence chose not to include it, then there's no possible grounds for an appeal there.