Welcome to the forum, and God bless you for your piety. I think it's great that you go to confession every week and pray the rosary daily. I try to go every week as well, and sadly I've fallen off with the daily rosary prayers but I can always get back on that horse.
I have to say though I disagree with your priest, I don't think he was right to criticize you for seeking frequent confession. Some of my catechists when I was converting shared how they would go to confession every day when they were visiting Rome. Even then, I know they aren't excessive or scrupulous people so I don't think they were abusing the sacrament even going that frequently.
I don't know what you're confessing, and it's none of my business, but it doesn't seem to be a scrupulosity issue which may be what he was suggesting. Rather it sounds like he's just trying to be progressive in his view of sin, which is exceedingly dangerous.
I don't think there would be anything wrong in seeking out another confessor, perhaps you can find one who takes the sacraments seriously. Because this priest's view of confession may extend to the other six sacraments as well. He may not take Holy Communion or Baptism or Confirmation seriously, and then what? Even if he's just being lazy and is trying to discourage his parishioners from overdoing it so he doesn't have to spend as much time in the confessional (or wherever he hears them) that's still not okay by any means.
He signed up for this.
Thank you from the warm welcome!
I think the priest suffers from the "I'll preach what I think is my own view of God" way of thinking, rather than sticking with Tradition and the Magisterium.
Now that you mention the other sacraments, I noticed that when he gives out communion he doesn't say "The body of Christ", he doesn't say anything, he just places the body of Christ on your hand, I do say "Amen" even if he doesn't say anything, the priest from the other parish always said to the laity "Please, when I say The Body of Christ you have to say Amen, not Thank you or anything else, but Amen".
That also makes me wonder, I've read that for a priest to consecrate the Host he has to be free of mortal sin, preferably he has to confess at the beginning of the day before celebrating mass, so if nothing is a sin to this priest the consecration might not be valid, or who knows, I have to read more on that.
Regarding pious tradition, I love the rosary and chaplets in general, novenas are my second favorite but I must confess that I don't like very much praying the litanies, I really have to struggle all the way through to the end. I don't mind long prayers, but litanies, there is just something about them that my body rejects.
One has to be careful with pious traditions, there are a LOT of devotions that are questionable or absolutely prohibited by the church and one doesn't know it, for example the "Precious Blood of Christ" from Nigeria, there is another Precious Blood devotion that it is aproved, but the one from the 1990s from Nigeria is prohibited by the Mexican Archdiocese. Another one is the "15 secret tortures of Jesus" which I believe is not prohibited but I've read several articles providing some very important reasons on why its false private revelation.
Same thing with Marian Apparitions, I try to stick with the ones which are strongly approved by the Vatican and try to avoid the ones that are only approved by the local Bishops or even those which haven't been proven and people swear by them (i.e. Medjugorje).
Also images, for example I constatly go to religious Catholic stores and I see figures of the "Archangel Jophiel" and stuff like that, so it is wise doing some research before dwelling into new things.