The house and senate both flipping is encouraging, but pay close attention to what comes next. There is no end to the self-inflicted challenges that the U.S. now faces. Many of them must be dealt with urgently. However, Democrat commentators are already saying that it will be to their advantage in 2028 if a Democrat controlled Congress accomplishes nothing for two years because Trump veto'd everything. This is not acceptable.
The U.S. has destabilized the globe. The conflicts they have both started and exacerbated need to be resolved in less than two years. Don't let your leaders, whichever side they're on, play politics until the next election. The U.S. has started a lot of fires. It needs to put them out promptly before somebody else does. Americans probably won't like it if that happens. That would cement the fall from unchallenged global superpower to just another misbehaving middle power.