Yes, you can pray in Hebrew. It's good to learn Hebrew, since that's what the language of the Torah. If you're learning by reciting, stick to the shorter Psalms. Psalm 23 is a good start. Psalm 117 is also good for learning and is short. Both are easy to memorize and easy to internalize.
Noahides are usually people who love God and want a closer relationship with Him. If you believe the Torah and accept it as God-given and correct, it may be challenging to join the Reform community. They have a significant amount on interpretative freedom so definitely visit and ask a lot of questions to see if your view of the Torah is compatible. Well, that applies to Orthodox, as well. Your Orthodox conversion would make your Jewish life easier, because they make up the largest group of religious Jews. Are you comfortable with accepting religious commandments from both rabbinic tradition AND the Torah? If not, take a look at Karaite Judaism, a minority of the Jewish minority. As you know, it's not necessary for Gentiles to join the Jews. We can still actually keep quite a bit of the Torah and holidays. And I'm sure they would appreciate the support in the rest of the world.
Whatever you decide, blessings to you for seeking to be closer to the Creator.