Back in 2011 I received 0.01 BTC from a free faucet. I forgot about this until 2017 when I rediscovered my wallet. I knew nothing (and still do) about BTC and sent the 0.01 BTC to another wallet but did not include a fee. I always read that this would either eventually be processed or "forgotten." The transaction has remained unconfirmed now for over 4 years and my original wallet is still debited the 0.01 BTC. How do I go about cancelling this transaction? I read some of the recommended posts on this but still not sure what to do. The wallet I used was the original Bitcoin wallet version 0.3.20.1 and does not offer RBF or CPFC. Any help would be great.