I’m sorry for your awful experiences. Other posters are quite right, video link is a valid option, and one that the courts will be used to. In the area that I work in, we use them with every trial, both links from court, and a local remote link from a specialist children’s centre. Are you within England and Wales? If outside, the Judge may not allow your link as you would not be able to be properly sworn, it can be done though. I have had witnesses flown in and remote linked from a different court. No one connected to the case will be able to advise you on which would be best, as it would amount to witness coaching which is illegal. Barristers prefer you to come to court so that they can come and see you on the day of trial, not so easily done if you are on a remote link (as opposed to court link which is referred to as live link). As to how the jury will perceive it, they are a collection of reasonable people so you could think about how you would perceive it. They are told not to draw any impact from how the evidence is presented, but of course having you in court behind a screen is far more inactive than seeing you on a video screen. That is not to say that it will have any bearing on how they perceive whether your evidence is truthful or not.
If I were in your position, I would go for the remote link if offered. Many trials don’t go ahead on the planned day, the courts are currently in chaos with trial after trial being bumped as very few court rooms are running, and a lot of DV cases plead on the day. So you could have a wasted trip.
If I didn’t do the job I do I would go to court however as there will be support; seeing the prosecutor, the police officer, the witness care people. If you arrive early you may have the option of looking around the court room first. If you have been referred to a DV support agency (Advance?) they should come along too. (If you haven’t been referred, ask! They are very helpful and knowledgeable about the court process. You can still be supported with special measures - evidence behind a screen or a live link from a separate room in the courthouse - again up to the judge, but a screen will pretty much always be granted with DV. You may find your trial will have greater priority to start because CPS will have paid for your flight and accommodation do court will be mindful of that.
I hope this is helpful - ultimately, don’t over stress and go for the option which is best for you. In terms of sentencing if found guilty, the Judge will decide that, and he won’t be impacted by how you give your evidence.