Long term investing – Spot, Margin or Derivatives?

I’m one of those idiots who invested in a bunch of coins/tokens at the top and lost a load of money – around $35k in total

I sold all of my coins/tokens a few months back but I will be reinvesting in numerous difference projects again when, or if, BTC goes down to $14k – which I believe will be somewhere close to the bottom.

Since losing the $35k I started trading using ByBit Derivatives and it’s helped me to understand the whole crypto scene a lot more. I lost another $5k when I first started trading but since then I’ve done pretty well (mainly shorting) and I reckon I’m now around $2-3k up with the trading in total. I’m still massively down overall since getting into crypto though

Anyway, regarding long term investing and whether I should use Spot, Margin or Derivatives… My plan is to invest in loads of different coins/tokens but if we just use BTC as an example…

EXAMPLE

If I purchase $1000 of BTC using the ByBit Derivatives pair BTC/USDT (i.e. using USDT to purchase the BTC) and I buy the BTC when the price is at $14k using a leverage of 2x, please can someone tell me if I’ve understood the following scenarios correctly:

1 – If, in a years time, the BTC price goes up from $14k to $56k, that would mean the price has multiplied by 4. That being the case, my investment of $1k USDT which I leveraged at 2x (so effectively invested $2k) will go up to $8k, resulting in $7k profit… Have I understood this correctly?

2 – If conversely the price of BTC goes down from $14k and I do not put in any kind of stop loss, at 2x leverage I estimate my liquidation price would be roughly half of $14k so around $7k (maybe just over)… is this correct?

3 – If I’ve understood both the above scenarios correctly, what is the benefit in using Spot or Margin? It seems to me that Derivatives does exactly the same as Spot and Margin with the added benefit of additional leverage if required! Is that not right?