You are right. 9 points is a huge interval in the table. Barcelona are in very good form this season; they are in form where they can beat any team that they play with. Barcelona will not make any mistake to lose three matches and leave the space for Real Madrid, where as I’m still doubting if Real Madrid will be getting back and get the first position, because while they are in the process of restoring their performance, Barcelona will still be getting more points that will make it difficult for Real Madrid to catch up on the table.
Real Madrid will most likely start to improve again. Because I'm sure they won't be down for long after the two bad results they got in the last two matches, namely in El Clasico and in the UCL. And currently Real Madrid's position, which is 9 points behind Barcelona, is quite sad. but Real Madrid still has 1 match postponed due to the flood disaster that occurred before the match against Valencia a few days ago. And if Real Madrid manages to win in the postponed match, Real Madrid will narrow the point difference from 9 points to 6 points. But still, a difference of 6 points is also quite a big difference if you look at Barcelona's current consistency. Because I think Barcelona is like a team that will not lose anytime soon. And it is possible that Barcelona will continue to increase their points advantage and make the distance between them and Real Madrid even further.
Barcelona, which has a difference of 9 points with Real Madrid, will potentially make it difficult for Real Madrid to catch up. And of course the mentality of Barcelona leading the standings with a difference of 9 points with Real Madrid will definitely make Barcelona more enthusiastic and will definitely appear more confident when they compete later.
I also predict that it will definitely be difficult for Barcelona to lose from now until the end of the season because Barcelona's players are all performing well and Hansi Flick is coaching very well, so what you say is true, it will definitely be difficult for Real Madrid to bring down Barcelona. Yes, currently many people doubt whether Real Madrid will perform as well as last season or not, but what is certain is that we will see what happens next.
Yes, if for example Real Madrid wins against Valencia, of course the difference in points will be 6, but what you say is very true because of course the difference of 6 points can certainly still be called a lot and it will still make it difficult for Real Madrid to shift Barcelona's position. But if, for example, a key Barcelona player is injured, I think it will probably make Real Madrid happy and will certainly make it easier for Real Madrid to overtake Barcelona from the top of the standings. The point is, it's still not the middle of the season and of course there could be surprises in the middle of the season from Laliga clubs, especially clubs that are currently in the top 5 standings. but it still seems like currently Barcelona is always the favorite to win the Laliga title, so of course it's possible that Barcelona's strength will get even better.