I also experienced similar situation where progress stalled through there was some initial progress where I tried out different traditions and techniques until I fell into the right track.
What could be happening in your practice is:
- the wrong technique as meditation
- a technique not suitable for you
- the technique the wrong way
You have to figure out what went wrong.
A formal meditation supposed to strengthen your practice while engaging in daily activity. Mindfulness should be present throughout your daily activities. This is not what is going wrong.
Scrutinise the instructions and read to validate your understanding. In case you practice what is unsuitable for you a wrong technique. Best starting point is to look into the Suttas which highlights the practice which might work for the majority. You will need a bit of trial and error to figure out what works.
Basic outline of what needs to be done is the you should be aware of:
- arising and passing
- of sensation (pleasant, unpleasant, neutral) that is felt.
You can analyse this at the level of sensations from corporeal body as Mahabhuta.
vedana can certainly be connected with three of the four mahabhuta (elements), which are collectively known as rupa. These three are pathavi (earth element), tejo (fire element) and vayo (air element). Apo (water element) is too subtle to touch, or is so subtle that one finds difficulty in feeling it. Now, to illustrate the connection between vedana and the three bhuta, when you have a cramp, which is the tightening of the muscles, it is pathavi; when you feel temperature of the body it is tejo; when you suffer from pain in the stomach, it may be something to do with vayo, for when the air in your stomach is stuck and finds no vent to get out, you have that experience of unpleasant feeling called pain. The connection of vedana with these mahabhuta makes it all the more manifest and helps one realize its true nature.
Source: Vipassana and Vedana as Understood by a Novice by U Tin Lwin
Similarly any of the 4 Satipatthana. More details and references can be found here and here.
Also look at the links between the 4 Noble Truths and what is felt. For details see Vedana and the Four Noble Truths by VRI.
Also the link between Dependent Origination and what is felt. For details see: Vedana in Paticcasamuppada
Understand the relationship with what is felt (pleasant, unpleasant and neutral) with hindrances. See answer here for more details.