Cryptocurrency gains and losses are not reported on schedule C unless investing is your day to day business (you are a day trader and that is your job). The requirements to be be considered a schedule C self-employed investor are complicated and I don't know them all. Here is a quote from a previous expert answer:
Traders
Special rules apply if you're a trader in securities, in the business of buying and selling securities for your own account. The law considers this to be a business, even though a trader doesn't maintain an inventory and doesn't have customers. To be engaged in business as a trader in securities, you must meet all the following conditions:
You must seek to profit from daily market movements in the prices of securities and not from dividends, interest, or capital appreciation;
Your activity must be substantial; and
You must carry on the activity with continuity and regularity.
The following facts and circumstances should be considered in determining if your activity is a securities trading business:
Typical holding periods for securities bought and sold;
The frequency and dollar amount of your trades during the year;
The extent to which you pursue the activity to produce income for a livelihood; and
The amount of time you devote to the activity.
If the nature of your trading activities doesn't qualify as a business, you're considered an investor and not a trader. It doesn't matter whether you call yourself a trader or a day trader, you're an investor. A taxpayer may be a trader in some securities and may hold other securities for investment. The special rules for traders don't apply to those securities held for investment. A trader must keep detailed records to distinguish the securities held for investment from the securities in the trading business. The securities held for investment must be identified as such in the trader's records on the day he or she acquires them (for example, by holding them in a separate brokerage account).
https://ttlc.intuit.com/community/tax-credits-deductions/discussion/schedule-c-for-personal-investin...
If you are not a schedule C self-employed investor, then your gains and losses are reported on schedule D as with any other capital gains and losses. You can deduct losses up to the amount of your gains plus $3000, if your losses are more than that, they carry forward to the next year.
If you have already been working with a CPA, you should go back to them, you already paid for their advice and they have a duty to get it right for you.
