Crypto transaction in 2019

So, I didn't realize that I have to declare crypto conversions.

In 2019, I didn't sell or buy anything but converted a crypto currency from one to another.
also received some coins worth $10 but didn't sell them. (sold them in 2020, which I am declaring now).

So only transaction I assume needed to mention was conversion from one currency to another.
I have generated my IRS 8949 & IRS Schedule D (1040) for 2019, and for this transaction, I have long term capital loss of  -$145.95.

 

How can I correct it? do I have amend the last year(2019) forms? or can I just submit the individual forms?shall I even declare them? or is it okay since it is capital loss?