Fear of commited sin(and im a bad person)

Since im working in a christian band(as a backstage helper and now am also managing the social media platforms of that band) i noticed that since than i became really hard on myself on the things i can do and not. I have that "in that position i shouldnt do certain things, cause i have responsibility, i dont want to ruin the name of that band" and this gave me so much pressure. I want to work as a christian song writer, i would like to write non christian songs too, and this is where the problem begins. Now i have this "only God" mentality, that for us christians everything should be about God, some worldly song are bad cause its against God, love songs are bad cause its lust and this is just about songs, but ive fallen into this rabbit hole that everything that its not about God its against him. Im so afraid that in my position as christian i will show a bad picture and thats a big pressure. So i will share what happened. With my friends we have fun by writing worldly songs, like parodies, we making fun of what todays worldy music is about (not every just some rap, pop music), how the songs doesnt have any value, its about money, how much money i have, girls, evers girl wants us for the money, i have luxury cars, i live the best life, and from all of this suddenly it turns to my heart is cold, nobody loves me, im alone, and making fun of this sometimes helps me to see behind all this fake happiness that this lifestyle will give, that i have money i have girls im so cool, im the king but deep down im suffering... so it helps me realizing this, and again we dont do that as we value this or we live like that, its a parody we show eachother how stupid these style of music is and its sad that the world likes this, but again not all of them cause since then i met non christian people who thinks the same about those songs. So this also made me feel sinful that we write these songs and we shouldnt do this. Yesterday i wrote a lyrics that was a little bit different than the other ones, it wasnt about money and how cool i am, it was about love, breakup and i didnt wrote that from my heart cause i dont have those experience and i was focusing on making it like these non christian breakup songs, and it became actually good. Today just randomly i thought about i try to send it to someone cause it could be a good song, and also i would feel good if something i did wil become big. And here is the problem lies, i feel like this is egoistic and agaist God cause i did it cause i want this to be about me, that something i did becomes big and famous... I sended the lyrics to someone and i want expect it but imediatelly got a respons and they liked the lyrics and they will make a song with that, so do you think i was happy about it? Oh no... suddenly i got hit by shame and a big anxiety that what i did was not right as a christian. I made a non christian song thats against God cause its about love and breakup which in my mind is lust and I made that relevant... and a huge fear and guilt hitted me and since then im afraid i did something wrong, i just acted from my ego, for my good sake, it wasnt about God and im dissapointed about myself. I try to see it as this song isnt that bad its not about sin, sex and drugs, its just about breakup, but my mind says i just try to make it like sin i good... also the person i sended has sinful wordly songs too, but he has many romantic, more about love songs, but the thing that he has sinful music makes me feel so bad and dissapointed about myself. I contributed to sin... its bad cause here noone can help me, the first thing i got from my family was "then why you did it, you shouldve thought about that". And it made me fear more cause dont get the support i need. So i try to find the support here...