If you can still get SSH access and can establish an account with a VPS provider with endpoints outside your country of origin, https://github.com/StreisandEffect/streisand is a little long in the tooth but may still be viable.
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Countries like China have blocked SSH-based tunneling for years.
It can also block sessions based on packet sizes: a typical web browsing session involves a short HTTP request and a long HTTP response, during which the receiving end sends TCP ACKs; but if the traffic traffic mimics the above except these "ACKs" are a few dozen bytes larger than a real ACK, it knows you are tunneling over a different protocol. This is how it detects the vast majority of VPNs.