- I haven’t been to a proper Catholic confession in years - the concept of it is quite terrifying. I personally think that confessing straight to God is perfectly sufficient, but I feel like it would be beneficial at the same time to go to a priestly confession. Any advice?
the Sacrament of Reconciliation is not only beneficial, it is necessary for a Catholic. If you are a Cathoilc, confessing straight to God is not enough. It might be that Protestants and others who confess straight to God are forgiven, but that is because of God’s mercy and their ignorance, not because that is the normal ordinary way. The way that God made to forgive sin is by Confession… He told the Apostles, whatever sins they forgive, will be forgiven; and whatever sins they don’t forgive, will not be forgiven. Furthermore, if we have a mortal sin that we haven’t said to a priest in Confession and repented of, we are not allowed to receive the Eucharist. If we persist on receiving Communion, we are doing a lot of damage to our souls, adding another mortal sin, and offending Christ - because He can not be united to someone with sin. Confession makes us completely clean before God

I experienced this when I became Catholic after being Protestant… I prayed to God for forgiveness as a Protestant, and even felt forgiven, but after my first Confession, it was more than a feeling… I knew my soul was completely cleansed and I was able to love God more than before. It’s very freeing

and yes it was scary to do and to say all those sins… it’s VERY important that we don’t leave any sins out. If you forget a sin, it will be forgiven, but if you intentionally leave it out (even if it’s out of fear or embarassment) that makes the whole Confession invalid because it shows a lack of proper contrition (sorrow for sin) and repentance.
Consider what Jesus told St Faustina:
catholic-forum.com/churches/cathteach/divinemercy_confession.htm
it is from this website:
catholic-forum.com/churches/cathteach/divinemercy1.htm
- I haven’t gone since I was 13, and it has been 9 years since. But, since I was young, I never had to confess things in regards to lustful sins relating to the self. Not to mention that I have exclusively a same-sex attraction (though I’ve always been abstinent), and I don’t know if I would have enough strength to actually tell a priest about my attraction to men
(I’ve never actually told anyone that I know). Does anyone have any experience doing anything related to that?
I think most people have had to confess a sin related to impurity sometime in their life. Trust me the priests have heard everything

you can’t surprise them! One time I had something really horrible to confess and I was really scared… I made myself say it, and the priest didn’t have any reaction at all, he just gave me advice, and absolved me. They are not harsh at all in Confession…

don’t worry about that. Also they’ve heard so many confessions that they are just not surprised any more and wouldnt look at you differently afterwards. (if you’re very concerned, you can make an anonymous Confession behind the screen… it is your choice, and many people choose to confess anonymously).
Regarding your same-sex attraction, the teaching of the Church is that simply having SSA is not a sin because it’s not necessarily a choice, - but it’s a sin to act on it in some way. So if you allowed yourself to have impure thoughts (consented to them, rather than being tempted and saying ‘no’), that would be sinful (both for people with SSA and without, it doesn’t matter). Let the priest know that you have been abstinent, that would clarify the situation. If you’re living chastely, that is what matters, and that is what God asks of all of us.
Don’t be afraid of Confession

it’s a Sacrament of God’s mercy and you’ll be speaking to Jesus, not just to the priest. Jesus is hidden in the priest when this Sacrament is done. Just be repentant, open about your sins, don’t hide anything, and trust in God’s mercy - and then you’ll make a good Confession
Hope that helps… God bless!