Of course the more torrents you have seeding, higher the chances of connecting to peers, but you need to have in mind that it is not sustainable to rely on seeding alone to keep a positive ratio. It is easier for new accounts to maintain a good ratio, but as your downloaded data increases, so increases the amount of data you are required to seed to recover your ratio. If you download 10GB in total, the amount you're required to seed in order to keep a positive ratio is 10GB. 10GB is a fairly small number, a pretty reasonable amount that is easy to seed. If you downloaded 1TB in total, now you're required to seed 1TB, which is much more unlikely. The demand on private trackers is never 1:1, meaning you will never reach 1 ratio for every torrent you download. Of course no one downloads 1TB in one go (usually), it's breaken down into much smaller bits that you download without realizing how much of an impact it will have in the future, and when you notice you have a negative ratio, despite having 1000 torrents in your client list.
I use qbittorrent as my client because it's has more features compared to utorrent, for instance i can order my list by session upload:
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This orders the list based on the amount of bytes sent since the last time the client started, which makes it more practical to track torrents with higher demand. In general, it follows a pattern, newer torrents have higher demand and are easier to seed. Older torrents might have a spike in demand if they are freeleeched. Apart from these two conditions, the torrents that you downloaded 8 months or 2 years ago will have a very low demand.
