If you want to beat the game properly, then why not try out some strategies such as skill combos, using items, doing some quests to unlock some more options, incorporating some exploration into your routine, etc.?
I could lower the difficulty, but that wouldn't be much different from you applying cheats. The only difference is that I'm applying the cheats for you.
It would also go against the spirit of the game of "keeping thinking" or giving in and using SK/lewds.
I'm pretty confident in how much I've explored. The entire early game of my playthrough was just running around fighting things and exploring until I ran out of HP, train, repeat. It got to the point where there were literally no mobs left in the maps available and I had to literally just "start day, train, end day" with nothing in between.
In spite of how much I explored/trained, I still frequently found myself needing to save/reload, or giving up on fights and going back to the monotonous "start day, train, end day" and coming back later until I could win. Some fights felt pretty much impossible without an ambush unless I overgeared the fight by a wide margin which itself requires alot of save/reload for mobs with erratic movement.
It takes an insane amount of effort to win without using SK when you're playing blind and when this is coupled with the tedious training/upgrade system as it currently is in the game, the amount of work feels immensely disproportionate to the reward.
If you really don't think that could be better balanced or that the upgrade system couldn't have some aspects streamlined in a way that would make it less tedious than I guess that's your prerogative but I completely disagree. The amount of trial and error, save/reloading and grinding skill/upgrades is excessive and I think this is especially true where (at least as far as I can tell) you have a finite amount of obtainable gold/resources which only exacerbates the demand for efficiency.