Does having tag pages in your site increases content duplicacy?

In my finance website I put so many tags pages on each pages. I have written more than 700 articles in it.

My problem is I have checked my site in sem rush tool and have found the same issues which I have discussed above.
My content I 100% percent original and unique
But with tag pages its creating duplicate pages.

Please suggest me how should I increasey traffic organically

Please help us out as our traffic has gone down trendiuosly.

I you want I can share my sire name also.

 

Don't send tag pages to index. That's it!

 

noindex is correct.

There are many reasons.
1: It does not matter if your content is unique.
More important does it provide value...
(for example: I am unique, however, I have no value...)

2: search the internet for some online seo-audit tools....
if that does not yield you results that you are satistifed with,
then you may need to contact someone that does seo auditing
for a living; They will comb your site, and provide best
feedback, and hopefully best plan of action.

3: Are you doing any link building? If so, what
type of links are you using? If you are using link
building then seriously check into their trust factor.

4: Check your backlinks for poor quality....You may have
bad backlink you have not keeping an eye own; disavow
any links that appear to be low quality or spammy. I guess the
disavow thing still works, not really sure....

5: What is your bounce rate like? You can be penalized by
having a high bounce rate, google see traffic coming to your
site then leaving quickly; The traffic either got their by
mistake (i have done that) then leaving; The traffic come
to your site, did not find what they were looking for, or
not interested, and left, or the traffic got to our site by
some ill means of manipulation, then turned and left...
using misleading keywords to get traffic, is a big no-no...

and there are many more factors also that google uses
in order to determine if you are worthy of the ranks....

Some days you probably wonder why you even try...
You work hard on your site, then out of the blue....
nothing....

feel free to keep everyone informed...

ps. one thing is for sure, if google flops your site into the wind, then you
clearly do not have enough HQ backlinks. When google is down, then
good backlinks on other sites still can bring traffic, however, if google
has penalized other sites that link back to you, that can be a problem...

You have to realize, google has changed; Do not create 10 pages
of useless content when 1 page will do ie: multiple tags..does this
mean this is the reason, i dunno, only you can figure that out.
make your changes quickly, if that is the reason, then maybe
you will recover fairly quickly, never can tell with google.