Nulle, I totally understand your perspective, and I also understand how the Russians see it.
But if Latvia just looks to the future, then you've got something VERY good going: You are a multilingual country, with lots of young people actually speaking three languages (including 2 big European languages) fluently. You've got a great little strategic spot on the map: Next to Russia with all its resources, next to the Baltic Sea and not far from Scandinavia who have always had strong links to the Baltics (and also invaded from time to time...) + close to Poland etc and now in the EU.
Nobody hates your country or have any historical issues with it, unlike a few other countries in Europe that are always treated with a bit suspicion. You are "the new kid on the block" in the EU at the moment. I think Latvia should be careful to build an image of a nice and sweet little country who is open and friendly to everyone.
Btw, Liepaja is really amazing. What an awesome beach! I am getting a tan.
So I think you should let the past be the past, try to focus on the positives and get everybody integrated and feeling positive about being Latvian and European, Regardless of their native language... and utilise the relationship with Russia for positive reasons, like business and scientific exchange.
Please don't think I am lecturing or meddling. This is just my subjective opinion, and I realise it doesn't matter much, or that it's not really my business.
Could you explain how the Baltic states feel about each other? Is there lots of interaction between the countries?