ah thanks friend for the advice, ah well I'll try not to be ambitious with the level of the character, thank you very much.You can't unlock 100% of the content in a single playthrough, eventually you need to pick the romance, corruption or NTR path with every female Love Interest.
If you corrupt certain Characters before picking romance or NTR path you are set on the corruption path (even on romance and NTR path you can corrupt girls to become more demanding in the H department)
Combat is quiet tough at the beginning, once you have more weapons it get's easier but enemies scale with MCs Level (until a cap based on enemy) so better not get complaced to early, certain Story progression switches old enemies out with more powerfull ones (Orcs and Bandits mainly)