Do you guys think my site has any chance of becoming successful? I chose a very competitive keyword with thousands of competitive sites and now I am feeling discouraged.

I have written so much detailed content, but now I just feel like its all pointless. It really is hurtful to be honest, but I guess that's just how things go.

Should I start all over with a less competitive keyword or keep trying to make it work with what I got?

What is your niche? How many pages did you write? How much on-site and off-site SEO did you do?
What are the stats for the top 10 websites for the KW you are targeting?

Is your website in the top 100 for your keyword?

PM me the site and we can take a look at it together.